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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0A7A-324 - P1557-887)) >> Hybrid Control System >> DTC P0A92-521: Hybrid Generator Performance >> Procedure

DTC P0A92-521: Hybrid Generator Performance: Procedure

  1. CHECK DTC OUTPUT (HV) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      P0A92-521 only is 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
      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, 279, 287, 503, 504, 505, 506, 523, 586, 806, 807, 808 Drive Motor "A" Inverter Performance
      P0A7A-325, 517, 518, 809, 810, 811 Generator Inverter Performance
      P0A94-547, 548, 549, 554, 555, 556, 585, 587, 589, 590 DC / DC Converter Performance
      P0AA6 (all INF codes) *1 Hybrid Battery Voltage System Isolation Fault
      P3004-132 Power Cable Malfunction
      P3233-750 Short to B+ in Blocking of HV Gate Connection
      P3240-443 DC / DC Converter Control Circuit

      HINT: 

      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic flowchart.
      • P0A92-521 may be set due to a malfunction which also causes DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.

    B → See step   8 

    A: Go to next step 

  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR). Refer to  PROCEDURE - Step 3 

    NG → CONNECT SECURELY 

    OK: Go to next step 

  3. CHECK INVERTER WITH CONVERTER ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to  PROCEDURE - Step 8 

    C → CONNECT SECURELY 

    B → REPLACE MALFUNCTIONING PARTS 

    A: Go to next step 

  4. CHECK HYBRID VEHICLE TRANSMISSION ASSEMBLY (MG1). Refer to  PROCEDURE - Step 10 

    NG → See step   5 

    OK → See step   7 

  5. CHECK HYBRID VEHICLE TRANSMISSION ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to  PROCEDURE - Step 18 

    C → CONNECT SECURELY 

    B → REPLACE MALFUNCTIONING PARTS 

    A: Go to next step 

  6. CHECK GENERATOR CABLE. Refer to  PROCEDURE - Step 19 

    NG → See step   10 

    OK → See step   9 

  7. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  REMOVAL 
  8. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  9. REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY. Refer to  REMOVAL 
  10. REPLACE GENERATOR CABLE. Refer to  REMOVAL 
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