LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2003 >> Highlander Limited, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System - Diagnostics >> Park/Neutral Position Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. INPUT SIGNAL CHECK 
    1. See input signal check PRE-CHECK .
    2. Check the indicator light when shifting into except D position.

      Standard: 

      The indicator light goes off when shifting into except D position. 

    Fig 1: Identifying Indicator Light Blinking Pattern Of Input Signal
    G02828813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE  See PROBLEM SYMPTOMS TABLE .
    2. NG: GO TO NEXT STEP 
  2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (DL, RB) 
    1. Disconnect the park/neutral position switch connector.
    2. Measure continuity between terminals RB (+) (P1-3) and DL (-) (P1-7) of park/neutral position switch connector.

      Standard: Continuity 

    Fig 2: Identifying Park/Neutral Position Switch Connector Terminals
    G02828814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    2. OK: GO TO NEXT STEP 
  3. CHECK VEHICLE CONDITION 
    1. w/o VSC, proceed to A.
    2. w/VSC, proceed to B.
    1. A: GO TO NEXT STEP 
    2. B: GO TO STEP   5 
  4. CHECK HARNESS AND CONNECTOR (BETWEEN CRUISE CONTROL ECU AND PARK/NEUTRAL POSITION SWITCH)  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: CHECK AND REPLACE CRUISE CONTROL ECU ASSEMBLY  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
  5. CHECK HARNESS AND CONNECTOR (D, BODY GROUND) 
    1. Turn ignition switch ON.
    2. Measure voltage between terminal D (C15-4) of ECU connector and body ground when shifting into D position and other positions.

      Standard: 

      VOLTAGE CHECK

      Shift Position Voltage
      D Position 10 - 14 V
      Other Positions Below 1 V
      Fig 3: Identifying ECU Connector Terminals
      G02828815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  6. INSPECT SKID CONTROL ECU ASSEMBLY (BETWEEN CRUISE CONTROL ECU AND SKID CONTROL ECU )  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
    1. NG: CHECK AND REPLACE SKID CONTROL ECU ASSEMBLY  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
    2. OK: GO TO NEXT STEP 
  7. CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND NEUTRAL START SWITCH)  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: CHECK AND REPLACE CRUISE CONTROL ECU ASSEMBLY  See ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
scientia non olet · About LEMON Manuals