Diesel Data: Automotive Repair

DLC3 Circuit

DLC3 CIRCUIT

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.

Step 1 - 2:




Step 3:




INSPECTION PROCEDURE