TC and CG Terminal Circuit

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: TC and CG Terminal Circuit

TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are output by the blinking of the tire pressure warning light.

WIRING DIAGRAM





HINT:
When each warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

INSPECTION PROCEDURE

PROCEDURE

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





(a) Disconnect the A38 ECM 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. INSPECT DLC3 (TC VOLTAGE)





(a) Connect the A38 ECM connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






NG -- REPLACE ECM
OK -- CHECK ECU POWER SOURCE CIRCUIT