Park Assist Module (PTS)

B210D-BATTERY VOLTAGE LOW





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
While the vehicle is in reverse for speeds less than 10 mph (16km/h).

- Set Condition:
Park Assist Module supply voltage less than 6.5 volts.





1. CHECK FOR ACTIVE DTC
1. Turn the ignition on.
2. Apply the vehicle park brake.
3. Shift the transmission into reverse.
4. With the scan tool, record and erase Park Assist Module DTCs.
5. Wait 30 seconds.
6. With the scan tool, read Park Assist Module DTCs.

Is this DTC active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST. Body Verification Test

2. VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM

NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.

NOTE: Make sure the battery is fully charged.

Are any charging system DTCs present?

Yes

- Testing and Inspection

No

- Go To 3

3. (F922) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR SHORTED




1. Turn the ignition off.
2. Disconnect the Park Assist Module C1 harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (F922) Fused Ignition Switch Output (Run) circuit.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Repair the (F922) Fused Ignition Switch Output (Run) circuit for an open or short.
- Perform the BODY VERIFICATION TEST. Body Verification Test

4. (Z177) GROUND CIRCUIT OPEN




1. Turn the ignition off.
2. Using a 12-volt test light connected to 12-volts, check both the (Z177) Ground circuit for an open.

Does the test light illuminate brightly?

Yes

- Replace the Park Assist Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Repair the (Z177) Ground circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test