HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A3F-243,P0A40-500 and P0A41-245
| DTC Code | DTC Name |
|---|---|
| P0A3F-243 | Drive Motor "A" Position Sensor Circuit |
| P0A40-500 | Drive Motor "A" Position Sensor Circuit Range / Performance |
| P0A41-245 | Drive Motor "A" Position Sensor Circuit Low |
DTC SUMMARY
MALFUNCTION DESCRIPTION
These DTCs indicate the resolver output signal is abnormal. The cause of this malfunction may be one of the following:
Area
Main Malfunction Description
Step
Inverter low-voltage circuit
Inverter low-voltage circuit
The connectors are not connected properly
2
Resolver
Resolver
Open or short circuit in the resolver for motor control
Internal motor malfunction (entry of foreign matter, etc.)
3
Wire harness between the resolver and inverter with converter assembly
Open or short circuit in the wire harness
The connectors are not connected properly
3
Inside of inverter
Inside of inverter
Inverter with converter assembly internal circuit malfunction
3
DESCRIPTION
Refer to the system description for the motor resolver circuit.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
P0A3F-243 |
Drive Motor "A" Position Sensor Circuit |
Interphase short in the motor resolver circuit: A short circuit between signal lines of motor resolver phases is electrically detected. (1 trip detection logic) |
|
Comes on |
Master Warning Light: Comes on |
P0A40-500 |
Drive Motor "A" Position Sensor Circuit Range / Performance |
Motor resolver signal is out of the normal range (amplitude is too large or too small). (1 trip detection logic) |
|
Comes on |
Master Warning Light: Comes on |
P0A41-245 |
Drive Motor "A" Position Sensor Circuit Low |
Open or short in the motor resolver circuit: Motor resolver signal is out of the normal range (amplitude is extremely small). (1 trip detection logic) |
|
Comes on |
Master Warning Light: Comes on |
WIRING DIAGRAM
Refer to the wiring diagram for the motor resolver circuit.
CAUTION / NOTICE / HINT
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.
Tip:Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
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 the problem symptom cannot be reproduced, performing a road test on a road on which the vehicle tends to vibrate will make it easier to reproduce the symptom.
If the resolver is malfunctioning, the vehicle may not drive smoothly.
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
-
Turn the power switch on (IG) and wait for 5 seconds or more.
Turn the power switch on (READY) with the shift lever in P and wait for 5 seconds or more.
Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine.
Keep the engine running for 5 seconds or more.
Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more.
Drive the vehicle backward with the shift lever in R for 5 m (16 ft.) or more.
PROCEDURE
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.
Powertrain > Hybrid Control > Trouble Codes
Result
Result
Proceed to
Only P0A3F-243, P0A40-500 or P0A41-245 is output, or DTCs other than P06B0-163, P06E6-164, P06D6-511 or P1C73-512 are output simultaneously
A
P06B0-163, P06E6-164, P06D6-511 or P1C73-512 is output simultaneously
B
Turn the power switch off.
CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)
Result
Result
Proceed to
OK
A
NG (The connector is not connected securely.)
B
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.)
C
B CONNECT SECURELY
C REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK MOTOR RESOLVER CIRCUIT
Tip:If the "Motor Resolver Circuit" inspection results are normal, perform the next step.
Result
Proceed to
NEXT