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Home >> Lexus >> 2005 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P0617: Starter Relay Circuit High >> Inspection Procedure
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Inspection Procedure

  1. READ DATA LIST (STARTER SIGNAL) 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and turn the hand-held tester ON.
    3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
    4. Confirm the starter signal status when the ignition switch is operated.

      OK: 

      IGNITION SWITCH POSITION

      Ignition Switch Position ON START
      STARTER SIG OFF ON
    1. OK: Go to step   4 . 
    2. NG: Go to next step. 
  2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSY (See  DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  ) 
    1. Move the shift lever to the P or N position. If the hand-held tester indicates that the park/neutral position switch is ON, the park/neutral position switch is considered to be normal.

      OK: PNP switch is ON. 

    1. NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY (See  PARK/NEUTRAL POSITION SWITCH ASSY  ) AND Go to step   3 
    2. OK: Go to next step. 
  3. READ DATA LIST (STARTER SIGNAL) 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and turn the hand-held tester ON.
    3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
    4. Confirm the starter signal status when the ignition switch is operated.

      OK: 

      IGNITION SWITCH POSITION DESCRIPTION

      Ignition Switch Position ON START
      STARTER SIG OFF ON
    1. OK: SYSTEM OK 
    2. NG: Go to next step. 
  4. INSPECT IGNITION SWITCH ASSY 
    1. Measure the resistance of the ignition switch.

      Standard: 

      RESISTANCE SPECIFICATIONS

      Tester Connection Switch Condition Specified Condition
      7 (AM2) - 8 (ST2) LOCK 10 k ohms or higher
      7 (AM2) - 8 (ST2) START Below 1 ohms
      Fig 1: Identifying Ignition Switch Terminals
      G02955611Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE IGNITION SWITCH ASSY AND Go to step   5 
    2. OK: Go to next step. 
  5. READ DATA LIST (STARTER SIGNAL) 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and turn the hand-held tester ON.
    3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
    4. Confirm the starter signal status when the ignition switch is operated.

      OK: 

      IGNITION SWITCH POSITION DESCRIPTION

      Ignition Switch Condition ON START
      STARTER SIG OFF ON
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: SYSTEM OK 
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