Lighting System Indicator Circuit

Vehicle Exterior. Corolla. Zre142 Aze141
Lighting (Ext). Corolla. Zre142 Aze141

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE

CHECK HARNESS AND CONNECTOR (FUSE - COMBINATION METER ASSEMBLY)

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - DAYTIME RUNNING LIGHT RELAY)

LIGHTING SYSTEM - Indicator Circuit


DESCRIPTION

The daytime running light relay receives headlight dimmer switch assembly information to control high beam headlight indicator.

WIRING DIAGRAM


Corolla. Zre142 Aze141.Lighting (Ext).Lighting System.Lighting System  Indicator Circuit


INSPECTION PROCEDURE

1.INSPECT FUSE
  1. Remove the H-LP RH HI fuse from the engine room relay block and junction block.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    H-LP RH HI
    Always
    Below 1 Ω


NG
REPLACE FUSE
OK


2.CHECK HARNESS AND CONNECTOR (FUSE - COMBINATION METER ASSEMBLY)
  1. Install the H-LP RH HI fuse to the engine room relay block and junction block.

  1. Disconnect the E46 combination meter assembly connector.

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

    Standard Voltage:
    Tester Connection
    Condition
    Specified Condition
    E46-4 (+) - Body ground
    High beam headlight ON
    11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - DAYTIME RUNNING LIGHT RELAY)
  1. Disconnect the E91 daytime running light relay connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    E46-3 (-) - E91-17 (H-ON)
    Always
    Below 1 Ω
    E46-3 (-) - Body ground
    Always
    10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (COROLLA_ZRE142 RM000002CE20DLX.html)