DTC P0A92-261: Hybrid Generator Performance [08/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (HYBRID CONTROL)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to P0A92-261 only is output, or DTCs except the ones in the table below are also output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1A (all INF codes)*1 Generator Control Module P0A1B (all INF codes)*1 Drive Motor "A" Control Module P0A1D (all INF codes)*1 Hybrid Powertrain Control Module 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 P0A4B-253 Generator Position Sensor Circuit P0A4C-513 Generator Position Sensor Circuit Range/Performance P0A4D-255 Generator Position Sensor Circuit Low P0A51-174 Drive Motor "A" Current Sensor Circuit P0A60 (all INF codes)*1 Drive Motor "A" Phase V Current P0A63 (all INF codes)*1 Drive Motor "A" Phase W Current P0A72 (all INF codes)*1 Generator Phase V Current P0A75 (all INF codes)*1 Generator Phase W Current P0A78-266, 267, 306, 586 Drive Motor "A" Inverter Performance P0A7A-203, 344 Generator Inverter Performance P0A90-509 Drive Motor "A" Performance P0A92-521 Hybrid Generator Performance P0A94-585, 587, 589, 590 DC / DC Converter Performance P0AA6 (all INF codes)*1 Hybrid Battery Voltage System Isolation Fault P0C76-523 Hybrid Battery System Discharge Time Too Long P3004-132 High Voltage Power Resource HINT:
- *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
- P0A92-261 may be stored due to a malfunction which causes the DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a reproduction test to check that no DTCs are output.
- Turn the power switch off.
B → See step 11
A: Go to next step
- CHECK DTC OUTPUT (HYBRID CONTROL)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to Any of the following DTCs are also output. A P0A92-261 only is output, or DTCs except the ones in the table below are also output. B DTC No. Relevant Diagnosis P0A90-251 Drive Motor "A" Performance HINT:
When the DTCs listed in the preceding table are also output, there may be a short between the HSDN (MG shut down signal) circuit and power circuit.
- Turn the power switch off.
B → See step 4
A: Go to next step
- CHECK POWER MANAGEMENT CONTROL ECU. Refer to PROCEDURE - Step 3
NG → See step 9
OK: Go to next step
- SIMULATION TEST
- Turn the power switch on (READY).
- Leave the vehicle for 1 minute with the engine on (with MG1 rotating).
HINT:
If the accelerator pedal is depressed with shift lever in (P), the engine will start.
- Connect the Techstream to the DLC3.
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to P0A92-261 is output or no DTCs are output. A P0A7A-344 or P0A92-521 is output. B - Turn the power switch off.
B → See step 11
A: Go to next step
- CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR). Refer to PROCEDURE - Step 4
NG → CONNECT SECURELY
OK: Go to next step
- CHECK INVERTER WITH CONVERTER ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to PROCEDURE - Step 9
B → REPLACE MALFUNCTIONING PARTS
C → CONNECT SECURELY
A: Go to next step
- CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to PROCEDURE - Step 26
B → REPLACE MALFUNCTIONING PARTS
C → CONNECT SECURELY
A: Go to next step
- CHECK GENERATOR CABLE. Refer to PROCEDURE - Step 27
NG → See step 13
OK → See step 12
- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER ASSEMBLY). Refer to PROCEDURE - Step 4
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK INVERTER WITH CONVERTER ASSEMBLY. Refer to PROCEDURE - Step 5
NG → See step 15
OK → See step 14
- GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]
- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY. Refer to COMPONENTS [08/2013 - ]
- REPLACE GENERATOR CABLE. Refer to COMPONENTS [08/2013 - ]
- REPLACE POWER MANAGEMENT CONTROL ECU. Refer to COMPONENTS [08/2013 - ]
- REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to COMPONENTS [08/2013 - ]