TC and CG Terminal Circuit

CRUISE CONTROL SYSTEM: TC and CG Terminal Circuit

TC and CG Terminal Circuit

DESCRIPTION

The DLC3 circuit enables reading of the Diagnostic Trouble Code (DTC) when making short circuit between terminals TC and CG of the DLC3 connector.
The DTCs are displayed when the CRUISE main indicator light on the combination meter blinks.

WIRING DIAGRAM





HINT: When a particular warning light blinks continuously, 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 HARNESS AND CONNECTOR (TC of DLC3 - ECM)





(a) Turn the ignition switch off.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
3MZ-FE





2AZ-FE





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (TC of DLC3 - ECM)
OK -- Continue to next step.
2. CHECK AND REPLACE HARNESS AND CONNECTOR (TC of 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 OR EACH ECU (TC CIRCUIT)
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (CG of 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 (CG of DLC3 - BODY GROUND)
OK -- REPLACE ECM