TC and CG Terminal Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: TC and CG Terminal Circuit

TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic mode. If a malfunction is present, DTCs will be output.

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.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DLC3 (TC TERMINAL VOLTAGE)
(a) Turn the ignition switch to ON.




(b) Measure the voltage of the DLC3.
Standard voltage:
10 to 14 V
OK -- CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

NG -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)
(a) Check for open and short circuit in harness and connector between terminal CG of DLC3 and body ground Electronic Circuit Inspection Procedure.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)
(a) Check for open and short circuit in harness and connector between terminal TC of DLC3 and ECM Electronic Circuit Inspection Procedure.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU
OK -- CHECK AND REPLACE ECM