CLEARANCE SONAR SYSTEM Reverse Signal Circuit

DESCRIPTION

The clearance warning ECU receives the reverse signal from the back-up light switch (M/T) or park/neutral position switch (A/T).

WIRING DIAGRAM

A01BE5BE01

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT CLEARANCE WARNING ECU


    1. A01BG69E02

      Disconnect the H33 connector from the clearance warning ECU.

    2. Measure the voltage according to the value(s) in the table below.

      Voltage

      Tester connection

      (Symbols)

      		 Condition Specified condition

      H33-9 (RL) -

      Body ground

      		 Ignition switch ON, shift lever R position 10 to 14 V

    OK

    RETURN TO THE ORIGINAL INSPECTION FLOW BECAUSE THE CHECK RESULT IS NORMAL

    NG

  2. CHECK HARNESS AND CONNECTOR


    1. A01BGCSE01

      Disconnect the connector from the back-up light switch (M/T) or park/neutral position switch (A/T).

    2. Measure the resistance according to the value(s) in the table below.

      Resistance

      Tester connection

      (Symbols)

      		 Condition Specified condition
      H33-9 (RL) - D37-1 (*1) Always Below 1 Ω
      H33-9 (RL) - D36-1 (*2) Always Below 1 Ω

      H33-9 (RL) -

      Body ground

      		 Always 10 kΩ or higher

      *1: A/T

      *2: M/T


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK TYPE


    1. Choose type to be inspected.

      Result
      Type Go to step
      A/T A
      M/T B

    B

    INSPECT BACK UP LIGHT SWITCH Click here

    A

  4. INSPECT PARK/NEUTRAL POSITION SWITCH


    1. A01BDPXE01

      Disconnect the park/neutral position switch connector D37.

    2. Measure the resistance according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition
      D37-1 - D37-2 Shift lever is moved to R position. Below 1 Ω
      D37-1 - D37-2 Shift lever is moved to any position except R. 10 kΩ or higher

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. INSPECT BACK UP LIGHT SWITCH


    1. A01BAC8E01

      Disconnect the back-up light switch connector D36.

    2. Measure the resistance according to the value(s) in the table below.

      Resistance
      Tester connection Condition Specified condition
      D36-1 - D36-2 Shift lever is moved to R position. Below 1 Ω
      D36-1 - D36-2 Shift lever is moved to any position except R. 10 kΩ or higher

    NG

    REPLACE BACK UP LIGHT SWITCH

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR