Test F

PINPOINT TEST F: THE PARKING AID MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

Test F1-F3:

Normal Operation
The parking aid module communicates with the diagnostic tool through the ISO 9141 communications network circuit 70 (LB/WH). If circuit 70 (LB/WH) becomes open or shorted to ground, communications to that module will not be possible. Check circuit 70 (LB/WH) between the parking aid module C4014 and the DLC C251. Total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in circuit 70 (LB/WH), damage to the DLC C251, damage to the parking aid module C4014, or a problem in the in-line connectors.

Possible Causes
- circuit 70 (LB/WH) shorted to ground or open
- DLC C251
- parking aid module
- parking aid module C4014