DTC Code | DTC Name |
---|---|
U0110-159 | Lost Communication with Drive Motor Control Module "A" |
U0110-656 | Lost Communication with Drive Motor Control Module "A" |
U0110-657 | Lost Communication with Drive Motor Control Module "A" |
DESCRIPTION
For a description of the inverter.
The MG ECU located in the inverter with converter assembly controls MG2 based on commands from the hybrid vehicle control ECU assembly. The MG ECU monitors communication data and detects malfunctions.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
U0110-159 | Lost Communication with Drive Motor Control Module "A" | Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard) |
|
Does not come on | Master Warning Light: Comes on |
U0110-656 | Lost Communication with Drive Motor Control Module "A" | Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard) |
|
Does not come on | Master Warning Light: Comes on |
U0110-657 | Lost Communication with Drive Motor Control Module "A" | Error in reception from inverter with converter assembly (MG ECU) via serial communication (no reception) |
|
Does not come on | Master Warning Light: Comes on |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
Tech Tips
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
If DTCs U0110-159, U0110-656, and/or U0110-657 were stored due to incomplete engagement of the connectors, and the system returns to normal when the power switch is turned on (IG) after clearing the DTCs, DTC P324E-788 will be stored. Proceed to troubleshooting without considering DTC P324E-788.
PROCEDURE
INSPECT FUSE (PCU)
Remove the PCU fuse from the No. 1 engine room relay block and No. 1 junction block assembly.
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
*2 | PCU Fuse |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Install the PCU fuse.
Result | |||
---|---|---|---|
|
NG |
REPLACE FUSE (PCU) Click here |
OK |
CLEAR DTC
Result | ||
---|---|---|
|
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Clear the DTCs and freeze frame data.
Turn the power switch off.
Result | ||
---|---|---|
|
NEXT |
CHECK DTC OUTPUT (HYBRID CONTROL)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check for DTCs.
Result | ||||||
---|---|---|---|---|---|---|
|
Turn the power switch off.
B |
CHECK FOR INTERMITTENT PROBLEMS Click here |
A |
CHECK INVERTER WITH CONVERTER ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION)
Result | ||||
---|---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the inverter cover from the inverter with converter assembly.
Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.
Specified Condition |
---|
Bolt A |
T = 8.0 N*m (82 kgf*cm, 71 in.*lbf) |
Bolt B |
T = 9.2 N*m (94 kgf*cm, 81 in.*lbf) |
Note
Make sure that the tightening torque of the bolt A is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).
Make sure that the tightening torque of the bolt B is between 6.4 and 12 N*m (65 and 122 kgf*cm, 57 and 106 in.*lbf).
Disconnect the generator cable from the inverter with converter assembly.
Check for arc marks at the terminals for the generator cable.
Result | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the generator cable to the inverter with converter assembly.
Install the inverter cover.
B |
REPLACE MALFUNCTIONING PARTS |
C |
CONNECT SECURELY |
A |
CHECK INVERTER WITH CONVERTER ASSEMBLY (MOTOR CABLE CONNECTION CONDITION)
Result | ||||
---|---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the inverter cover from the inverter with converter assembly.
Check that the bolts for the motor cable are tightened to the specified torque, the motor cable is connected securely, and there are no contact problems.
Specified Condition |
---|
Bolt A |
T = 8.0 N*m (82 kgf*cm, 71 in.*lbf) |
Bolt B |
T = 9.2 N*m (94 kgf*cm, 81 in.*lbf) |
Note
Make sure that the tightening torque of the bolt A is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).
Make sure that the tightening torque of the bolt B is between 6.4 and 12 N*m (65 and 122 kgf*cm, 57 and 106 in.*lbf).
Disconnect the motor cable from the inverter with converter assembly.
Check for arc marks at the terminals for the motor cable.
Result | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the motor cable to the inverter with converter assembly.
Install the inverter cover.
B |
REPLACE MALFUNCTIONING PARTS |
C |
CONNECT SECURELY |
A |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MG1)
Result | |||
---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the inverter cover from the inverter with converter assembly.
Disconnect the generator cable and motor cable from the inverter with converter assembly.
*1 | Shield Ground |
*a | Generator Cable (Inverter with Converter Assembly Side) |
Check MG1 for an interphase short using a milliohmmeter.
Using a milliohmmeter, measure the resistance according to the value(s) in the table below.
Tech Tips
If the MG1 temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68° F).
R20 = Rt / {1 + 0.00393 X (T - 20)}
The calculation is based on the following:
R20: Resistance at 20°C (68° F) (mΩ)
Rt: Measured resistance (mΩ)
T: Temperature when the resistance is measured (°C)
Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
Note
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the generator cable and motor cable.
Install the inverter cover.
Result | |||
---|---|---|---|
|
NG |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION) Click here |
OK |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MG2)
Result | |||
---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the inverter cover from the inverter with converter assembly.
Disconnect the generator cable and motor cable from the inverter with converter assembly.
*1 | Shield Ground |
*a | Motor Cable (Inverter with Converter Assembly Side) |
Check MG2 for an interphase short using a milliohmmeter.
Using a milliohmmeter, measure the resistance according to the value(s) in the table below.
Tech Tips
If the MG2 temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68° F).
R20 = Rt / {1 + 0.00393 X (T - 20)}
The calculation is based on the following:
R20: Resistance at 20°C (68° F) (mΩ)
Rt: Measured resistance (mΩ)
T: Temperature when the resistance is measured (°C)
Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
Note
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the generator cable and motor cable.
Install the inverter cover.
Result | |||
---|---|---|---|
|
NG |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE CONNECTION CONDITION) Click here |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY POWER SOURCE CIRCUIT)
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Disconnect the A143 inverter with converter assembly connector.
*a | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Reconnect the A143 inverter with converter assembly connector.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK WAVEFORM (CLK))
Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the following table.
Turn the power switch on (IG).
*a | Component with harness connected (Hybrid Vehicle Control ECU Assembly) |
Measure the waveform.
Item | Contents |
---|---|
Tester Connection | CH1: A150-33 (CLK+) - E135-6 (E1) CH2: A150-32 (CLK-) - E135-6 (E1) |
Equipment Setting | 1 V/DIV., 1 μs./DIV. |
Condition | Power switch on (IG) |
Result | ||||||
---|---|---|---|---|---|---|
|
Tech Tips
Inspect with the connector connected.
If pulses are generated, the shape of the waveform can be assumed to be normal.
The shape of the waveform may vary according to communication conditions.
Turn the power switch off.
B |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (CLK)) Click here |
A |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK WAVEFORM (REQ))
Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the following table.
Turn the power switch on (IG).
*a | Component with harness connected (Hybrid Vehicle Control ECU Assembly) |
Measure the waveform.
Item | Contents |
---|---|
Tester Connection | CH1: A150-31 (REQ+) - E135-6 (E1) CH2: A150-30 (REQ-) - E135-6 (E1) |
Equipment Setting | 1 V/DIV., 1 ms./DIV. |
Condition | Power switch on (IG) |
Result | ||||||
---|---|---|---|---|---|---|
|
Tech Tips
Inspect with the connector connected.
If pulses are generated, the shape of the waveform can be assumed to be normal.
The shape of the waveform may vary according to communication conditions.
Turn the power switch off.
B |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (REQ)) Click here |
A |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK WAVEFORM (MTH))
Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the following table.
Turn the power switch on (IG).
*a | Component with harness connected (Hybrid Vehicle Control ECU Assembly) |
Measure the waveform.
Item | Contents |
---|---|
Tester Connection | CH1: A150-23 (MTH+) - E135-6 (E1) CH2: A150-22 (MTH-) - E135-6 (E1) |
Equipment Setting | 1 V/DIV., 200 μs./DIV. |
Condition | Power switch on (IG) |
Result | ||||||
---|---|---|---|---|---|---|
|
Tech Tips
Inspect with the connector connected.
If pulses are generated, the shape of the waveform can be assumed to be normal.
The shape of the waveform may vary according to communication conditions.
Turn the power switch off.
A |
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY for LHD: Click here |
B |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (MTH)) Click here |
REPLACE FUSE (PCU)
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
*2 | PCU Fuse |
Replace the PCU fuse.
Turn the power switch on (READY).
Check if there is an open circuit in the PCU fuse in the No. 1 engine room relay block and No. 1 junction block assembly.
OK |
---|
There is no open circuit in the PCU fuse. |
Tech Tips
If the fuse does not become open again after turning the power switch on (READY), it can be assumed that the previous fuse failed due to age.
Turn the power switch off.
Result | |||
---|---|---|---|
|
OK |
COMPLETED |
NG |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - PCU FUSE) Click here |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION)
Result | ||||
---|---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the inverter with converter assembly.
Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.
Specified Condition |
---|
Bolt A |
T = 20 N*m (204 kgf*cm, 15 ft.*lbf) |
Bolt B |
T = 10 N*m (102 kgf*cm, 7 ft.*lbf) |
Note
Make sure that the tightening torque of the bolt A is between 16 and 24 N*m (163 to 245 kgf*cm, 12 to 18 ft.*lbf).
Make sure that the tightening torque of the bolt B is between 8 and 12 N*m (82 and 122 kgf*cm, 71 and 106 in.*lbf).
Disconnect the generator cable from the hybrid vehicle transaxle assembly.
Check for arc marks at the terminals for the generator cable.
Result | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the generator cable to the hybrid vehicle transaxle assembly.
Install the inverter with converter assembly.
B |
REPLACE MALFUNCTIONING PARTS |
C |
CONNECT SECURELY |
A |
CHECK GENERATOR CABLE
Result | |||
---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the generator cable.
*1 | Shield ground |
*a | Generator Cable (Inverter with Converter Assembly Side) |
*b | Generator Cable (Hybrid Vehicle Transaxle Assembly Side) |
Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
Note
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
Wrap the terminal of the generator cable with insulating tape to prevent them from coming into contact with body ground.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Install the generator cable.
Result | |||
---|---|---|---|
|
OK |
REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here |
NG |
REPLACE GENERATOR CABLE Click here |
CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE CONNECTION CONDITION)
Result | ||||
---|---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Check that the bolts for the motor cable are tightened to the specified torque, the motor cable is connected securely, and there are no contact problems.
Specified Condition |
---|
T = 10 N*m (102 kgf*cm, 7 ft.*lbf) |
Note
Make sure that the tightening torque of the bolt is between 8 and 12 N*m (82 and 122 kgf*cm, 71 and 106 in.*lbf).
Disconnect the motor cable from the hybrid vehicle transaxle assembly.
Check for arc marks at the terminals for the motor cable.
Result | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the motor cable to the hybrid vehicle transaxle assembly.
B |
REPLACE MALFUNCTIONING PARTS |
C |
CONNECT SECURELY |
A |
CHECK MOTOR CABLE
Result | |||
---|---|---|---|
|
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Remove the motor cable.
*1 | Shield ground |
*a | Motor Cable (Inverter with Converter Assembly Side) |
*b | Motor Cable (Hybrid Vehicle Transaxle Assembly Side) |
Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
Note
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
Wrap the terminal of the motor cable with insulating tape to prevent them from coming into contact with body ground.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Install the motor cable.
Result | |||
---|---|---|---|
|
OK |
REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here |
NG |
REPLACE MOTOR CABLE Click here |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (CLK))
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Disconnect the A150 hybrid vehicle control ECU assembly connector.
Disconnect the A143 inverter with converter assembly connector.
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
*b | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the hybrid vehicle control ECU assembly connector and the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Reconnect the A143 inverter with converter assembly connector.
Reconnect the A150 hybrid vehicle control ECU assembly connector.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK INVERTER WITH CONVERTER ASSEMBLY (CLK)
Disconnect the A150 hybrid vehicle control ECU assembly connector.
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Reconnect the A150 hybrid vehicle control ECU assembly connector.
Result | |||
---|---|---|---|
|
OK |
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY for LHD: Click here |
NG |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (REQ))
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Disconnect the A150 hybrid vehicle control ECU assembly connector.
Disconnect the A143 inverter with converter assembly connector.
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
*b | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the hybrid vehicle control ECU assembly connector and the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Reconnect the A143 inverter with converter assembly connector.
Reconnect the A150 hybrid vehicle control ECU assembly connector.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK INVERTER WITH CONVERTER ASSEMBLY (REQ)
Disconnect the A150 hybrid vehicle control ECU assembly connector.
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Reconnect the A150 hybrid vehicle control ECU assembly connector.
Result | |||
---|---|---|---|
|
OK |
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY for LHD: Click here |
NG |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - INVERTER WITH CONVERTER ASSEMBLY (MTH))
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Disconnect the A150 hybrid vehicle control ECU assembly connector.
Disconnect the A143 inverter with converter assembly connector.
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
*b | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the hybrid vehicle control ECU assembly connector and the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Reconnect the A143 inverter with converter assembly connector.
Reconnect the A150 hybrid vehicle control ECU assembly connector.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK INVERTER WITH CONVERTER ASSEMBLY (MTH)
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Disconnect the A143 inverter with converter assembly connector.
*a | Component with harness connected (Hybrid Vehicle Control ECU Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Reconnect the A143 inverter with converter assembly connector.
Result | |||
---|---|---|---|
|
OK |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here |
NG |
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY for LHD: Click here |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - PCU FUSE)
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
*2 | PCU Fuse |
Remove the PCU fuse from the No. 1 engine room relay block and No. 1 junction block assembly.
Disconnect the A143 inverter with converter assembly connector.
Measure the resistance according to the value(s) in the table below.
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly | *2 | PCU Fuse |
*a | Front view of wire harness connector (to Inverter with Converter Assembly) |
- | - |
Standard Resistance (Check for Short) | ||||||
---|---|---|---|---|---|---|
|
Reconnect the A143 inverter with converter assembly connector.
Install the PCU fuse.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR Click here |
OK |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS
Result | ||
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NEXT |
REPLACE FUSE (PCU) |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result | ||
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NEXT |
REPLACE FUSE (PCU) |