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Test H: The Parking Aid Module Does Not Respond to the Scan Tool

PINPOINT TEST H: THE PARKING AID MODULE DOES NOT RESPOND TO THE SCAN TOOL


H1-H2:






H3-H4:






Normal Operation
The parking aid module communicates with the scan tool through the International Standards Organization (ISO) 9141 communications network. Circuit 70 (LB/WH) provides the network connection to the parking aid module. The parking aid module shares the ISO network with the restraints control module (RCM). Voltage for the parking aid module is provided by circuit 294 (WH/LB). Ground is provided by circuit 875 (BK/LB).

Possible Causes
- Fuse
- Circuit 70 (LB/WH) open
- Circuit 294 (WH/LB) open
- Circuit 875 (BK/LB) open
- Parking aid module