Taillight Relay Circuit

LIGHTING SYSTEM: Taillight Relay Circuit

Taillight Relay Circuit

DESCRIPTION

The multiplex network body ECU controls the TAIL relay when a signal is received from the headlight dimmer switch assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT RELAY
(a) Inspect TAIL relay continuity.





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





NG -- REPLACE RELAY
OK -- Continue to next step.
2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (POWER SOURCE CIRCUIT)
(a) Disconnect the 2A connector from the instrument panel junction block assembly.





(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
OK -- Continue to next step.
3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
(a) Measure the voltage according to the value(s) in the table below.





Standard voltage:





NG -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (EACH OF TAILLIGHT CIRCUIT)