| DTC Code | DTC Name |
|---|---|
| P3107-214 | Lost Communication with Airbag System Control Module |
DESCRIPTION
Refer to the description for DTC P3107-213.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P3107-214 | Lost Communication with Airbag System Control Module | Open or short to +B in the communication circuit |
|
Does not come on | Master Warning Light: Comes on |
WIRING DIAGRAM
Refer to the wiring diagram for DTC P0AE6-225.
Refer to the wiring diagram for DTC P3107-213.
PROCEDURE
CHECK DTC OUTPUT (SRS AIRBAG)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.
Check for DTCs.
| Result | ||||||
|---|---|---|---|---|---|---|
|
Turn the power switch off.
| B |
|
GO TO DTC CHART (AIRBAG SYSTEM) Click here |
| A |
|
CHECK AIRBAG SENSOR ASSEMBLY (CHECK WAVEFORM)
| Result | |||
|---|---|---|---|
|
Connect an oscilloscope between the airbag sensor assembly terminals specified in the table below.
Turn the power switch on (READY).
| *a | Component with harness connected (Airbag Sensor Assembly) |
Measure the waveform.
| Item | Contents |
|---|---|
| Terminal | E14-14 (GSW2) - E14-25 (E1) |
| Equipment Setting | 5 V/DIV., 500 ms./DIV. |
| Condition | Power switch on (READY) |
| Result | ||||||
|---|---|---|---|---|---|---|
|
Turn the power switch off.
| B |
|
CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR) Click here |
| A |
|
CLEAR DTC
| Result | ||
|---|---|---|
|
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Read and record the DTCs and freeze frame data.
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 |
|
REPLACE POWER MANAGEMENT CONTROL ECU for LHD: Click here |
| A |
|
CHECK INTERMITTENT PROBLEMS
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE POWER MANAGEMENT CONTROL ECU for LHD: Click here |
| NG |
|
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)
| Result | |||
|---|---|---|---|
|
Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors.
| OK |
|---|
| The connectors are connected securely and there are no contact pressure problems. |
| *1 | for LHD | *2 | for RHD |
| Result | |||
|---|---|---|---|
|
| NG |
|
CONNECT SECURELY |
| OK |
|
CHECK CONNECTOR CONNECTION CONDITION (AIRBAG SENSOR ASSEMBLY CONNECTOR)
| *a | Component with harness connected (Airbag Sensor Assembly) |
Check the connector connections and contact pressure of the relevant terminals for the airbag sensor assembly connectors.
| OK |
|---|
| The connectors are connected securely and there are no contact pressure problems. |
| Result | |||
|---|---|---|---|
|
| NG |
|
CONNECT SECURELY |
| OK |
|
CHECK HARNESS AND CONNECTOR (+B SHORT)
| *1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
| *2 | AM2 Fuse |
| *3 | PM IGCT Fuse |
Remove the AM2 fuse and PM IGCT fuse from the No. 1 engine room relay block and No. 1 junction block assembly.
| *1 | Instrument Panel Junction Block Assembly |
| *2 | IGN Fuse |
Remove the IGN fuse from the instrument panel junction block assembly.
| *a | Component without harness connected (Airbag Sensor Assembly) |
Disconnect the E14 airbag sensor assembly connector.
| *a | Component with harness connected (Power Management Control ECU) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Reconnect the E14 airbag sensor assembly connector.
Install the IGN fuse.
Install the AM2 fuse and PM IGCT fuse.
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES) Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - AIRBAG SENSOR ASSEMBLY)
Disconnect the E111 power management control ECU connector.
Disconnect the E14 airbag sensor assembly connector.
| *a | Rear view of wire harness connector (to Power Management Control ECU) |
| *b | Rear view of wire harness connector (to Airbag Sensor Assembly) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance (Check for Open) | ||||||
|---|---|---|---|---|---|---|
|
| Standard Resistance (Check for Short) | ||||||
|---|---|---|---|---|---|---|
|
Tech Tips
As necessary, check that there are no wires shorted to power supply when performing the above wire harness inspection.
Reconnect the E14 airbag sensor assembly connector.
Reconnect the E111 power management control ECU connector.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK POWER MANAGEMENT CONTROL ECU
| *a | Component without harness connected (Airbag Sensor Assembly) |
Disconnect the E14 airbag sensor assembly connector.
Turn the power switch on (IG).
| *a | Component with harness connected (Power Management Control ECU) |
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the airbag sensor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Reconnect the E14 airbag sensor assembly connector.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY Click here |
| NG |
|
REPLACE POWER MANAGEMENT CONTROL ECU for LHD: Click here |
CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)
| *1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
| *2 | AM2 Fuse |
| *3 | PM IGCT Fuse |
Remove the AM2 fuse and PM IGCT fuse from the No. 1 engine room relay block and No. 1 junction block assembly.
| *1 | Instrument Panel Junction Block Assembly |
| *2 | IGN Fuse |
Remove the IGN fuse from the instrument panel junction block assembly.
| *a | Component without harness connected (Airbag Sensor Assembly) |
Disconnect the E14 airbag sensor assembly connector.
Disconnect the A129, A130, E111 and E112 power management control ECU connectors.
| *a | Rear view of wire harness connector (to Power Management Control ECU) |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Reconnect the A129, A130, E111 and E112 power management control ECU connectors.
Reconnect the E14 airbag sensor assembly connector.
Install the IGN fuse.
Install the AM2 fuse and PM IGCT fuse.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE POWER MANAGEMENT CONTROL ECU for LHD: Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |