Test S: The Parking Aid Module Does Not Respond To The Scan Tool

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

S1-S2:

S2-S3:

S4:

Normal Operation
The parking aid module communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the parking aid module. The parking aid module shares the MS-CAN network with the instrument cluster, the smart junction box (SJB), the electronic manual temperature control module (if equipped), the electronic automatic temperature control (EATC) module (if equipped), the audio unit, the THX(R) amplifier (if equipped), the satellite radio receiver (if equipped), the power running board module (if equipped), the power liftgate module (if equipped) and the climate controlled seat module (if equipped). Voltage for the parking aid module is provided by circuit CBP35 (YE/GY). Circuit GD133 (BK) provides ground.

DTC U0159 - sets in a module which had attempted to communicate with the parking aid module and failed.

Possible Causes
- Fuse
- Circuit CBP35 (YE/GY) open
- Circuit GD133 (BK) open
- Circuit VDB06 (GY/OG) open (MS-CAN +)
- Circuit VDB07 (VT/OG) open (MS-CAN -)
- Parking aid module