LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2017 >> GS 450h Base >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (P0A09-591 - P0A1B-794) >> Hybrid Control System >> DTC P0A1B-168: Drive Motor "A" Control Module; DTC P0A1B-795: Drive Motor "A" Control Module; DTC P0A1B-796: Drive Motor "A" Control Module [09/2014 - 10/2015] >> Procedure

DTC P0A1B-168: Drive Motor "A" Control Module; DTC P0A1B-795: Drive Motor "A" Control Module; DTC P0A1B-796: Drive Motor "A" Control Module [09/2014 - 10/2015]: Procedure

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

      Result

      Result Proceed to
      P0A1B-168, 795 or 796 only is output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      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
    5. Turn the power switch off.

    Result:  B

    B 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) 

    (See service information). Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015] )

    Result:  A

    A 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) 

    Refer to PROCEDURE - Step 4

    Result:  NG

    NG 

    CONNECT SECURELY 

    Result:  OK

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER) 

    See step  3

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  4

  4. CHECK GENERATOR RESOLVER 

    See step  4

    Result:  NG

    NG 

    See step  9

    Result:  OK

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER) 

    See step  5

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  6

  6. CHECK MOTOR RESOLVER 

    See step  6

    Result:  NG

    NG 

    See step  11

    Result:  OK

    OK 

    See step  7

  7. CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR) 

    See step  7

    Result:  NG

    NG 

    CONNECT SECURELY 

    Result:  OK

    OK 

    See step  8

  8. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR) 

    See step  8

    Result:  OK

    OK 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY 

    (See service information). Refer to REMOVAL [09/2014 - ] )

    Result:  NG

    NG 

    CONNECT SECURELY 

  9. CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR) 

    See step  9

    Result:  NG

    NG 

    CONNECT SECURELY 

    Result:  OK

    OK 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER) 

    See step  10

    Result:  OK

    OK 

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY 

    (See service information). Refer to REMOVAL [09/2014 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  11. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR) 

    See step  11

    Result:  NG

    NG 

    CONNECT SECURELY 

    Result:  OK

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER) 

    See step  12

    Result:  OK

    OK 

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY 

    (See service information). Refer to REMOVAL [09/2014 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals