B1243

B1243-REAR PARK ASSIST DISABLE SWITCH STUCK

B1243-Rear Park Assist Disable Switch Stuck:

WHEN MONITORED
With the ignition on.

SET CONDITION
The Instrument Cluster detects the Rear Park Assist Disable Switch active for greater than 20 seconds.

POSSIBLE CAUSES
- (X774) park assist on/off switch circuit short to ground
- Lower switch bank
- Instrument cluster

DIAGNOSTIC TEST

1. CHECK FOR ACTIVE DTC
Press and release the switch three times.
Turn the ignition on.
With the scan tool, record and erase Instrument Cluster DTCs.
Turn the ignition off.
Turn the ignition on.
Wait 30 seconds.
With the scan tool, read Instrument Cluster DTCs.

Q: Is DTC: B1243-REAR PARK ASSIST DISABLE SWITCH STUCK 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 BODY VERIFICATION TEST VER 1. Body Verification Test

2. CHECK OPERATION OF THE LOWER SWITCH BANK




Turn the ignition off.
Disconnect the Lower Switch Bank Harness Connector.
Turn the ignition on.
Wait 30 seconds.
With the scan tool, read Instrument Cluster DTCs.

Q: Does the scan tool display: B1243-REAR PARK ASSIST DISABLE SWITCH STUCK?

YES: Go To 3
NO: Replace the Lower Switch Bank.
Perform BODY VERIFICATION TEST VER 1. Body Verification Test

3. CHECK THE (X774) PARK ASSIST ON/OFF SWITCH CIRCUIT FOR A SHORT TO GROUND




Turn the ignition off.
Disconnect the Instrument Cluster C1 harness connector.
Measure the resistance of the (X774) Park Assist ON/OFF Switch circuit for a short to ground.

Q: Is the resistance below 10K ohms?

YES: Repair the (X774) Park Assist ON/OFF Switch circuit for a short to ground.
Perform BODY VERIFICATION TEST VER 1. Body Verification Test
NO: Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST VER 1. Body Verification Test