2010 Cadillac Truck SRX FWD V6-3.0L Page 216
Circuit/System Description
The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The parking assist
control module supplies 8 V to the object sensors via the 8 V reference circuit and provides ground via the low reference circuit. The parking assist
control module triggers the sensors in a sequential loop. After each sensor transmits, the parking assist control module uses the sensor echo
received through the signal circuit to calculate the distance and position of an object.
Conditions for Running the DTC
* Ignition ON
* The parking assist is activated. The activation takes place through putting in the reverse gear or through operating the parking assist switch.
Conditions for Setting the DTC
B138A 03
The parking assist control module has detected the 8 V reference circuit is less than 7.2 V.
B138A 07
The parking assist control module has detected the 8 V reference circuit is greater than 9.2 V.
Action Taken When the DTC Sets
* The parking assist is disabled.
* The driver information center displays SERVICE PARK ASSIST.
Conditions for Clearing the DTC
The condition for setting the DTC is no longer present.
Reference Information
Schematic Reference
Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical
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