C1734 CONTROL UNIT

Description
An internal malfunction has been detected in the TPMS function of the BCM.

DTC Logic

DTC DETECTION LOGIC

1. On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2. Check display contents on SELF DIAG RESULT screen. Is C1734 displayed in the self-diagnosis display?

YES >> Refer to Diagnosis Procedure.
NO >> Inspection End.

Diagnosis Procedure

MALFUNCTION CODE NO. 53 (DTC C1734)
1.SELF-DIAGNOSTIC RESULTS

1. On "SELECT DIAG" mode, select the "SELF-DIAG RESULT" screen for BCM.
2. Check display contents on "SELF-DIAG RESULT". Does self-diagnostic results indicate any DTC other than C1734?

YES >> Perform trouble diagnosis for DTC. Refer to See: Testing and Inspection.
NO >> GO TO 2.
2.CHECK BCM HARNESS CONNECTORS
Check BCM harness connectors for damage or loose connections.
Are the BCM harness connectors damaged or loose?
YES >> Repair or replace damaged parts.
NO >> GO TO 3.
3.BCM POWER SUPPLY AND GROUND
Check BCM power supply and ground. Refer to See: Body and Frame\Body Control Systems\Testing and Inspection\Component Tests and General Diagnostics\Power Supply And Ground Circuit.
Are the power supply and grounds normal?
YES >> GO TO 4.
NO >> Repair power supply or grounds as necessary.
4.CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER

1. Turn ignition switch "OFF"
2. Disconnect BCM harness connector M18 (A) and tire pressure receiver harness connector M70 (B).
3. Check continuity between BCM harness connector and tire pressure receiver harness connector.