Diagnosis Circuit

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: Diagnosis Circuit

Diagnosis Circuit

DESCRIPTION

This circuit is used to read the DTCs that are output from the transponder key ECU assembly with the Techstream.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: If the transponder key ECU assembly is replaced, register the key and ECU communication ID Engine Immobiliser System.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - DLC3)




(a) Disconnect the transponder key ECU assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)




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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE TRANSPONDER KEY ECU ASSEMBLY