Diagnosis Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Diagnosis Circuit

Diagnosis Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 will output DTCs from the DLC3.

WIRING DIAGRAM




HINT: When a particular warning light remains blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in the relevant ECU is suspected.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (DLC3 - ECM AND BODY GROUND)




(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





(c) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. CHECK WIRE HARNESS (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 ECM