B1863

B1863 - Passenger Window Position Sensor Power Supply Low






For a complete wiring diagram, refer to.

• When Monitored: Whenever the module is awake.

• Set Condition: When the passenger window hall sensor supply circuit falls below 0.8 volts for over 480ms.






Test Step 1 - Test for an Intermittent Condition

• Ensure the battery voltage and charging system are within specifications before proceeding.

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Operate the passenger window UP and DOWN several times.

• Wait 30 seconds.

• With the scan tool, check for DTCs.

Does the scan tool display B1863 - Passenger Window Position Sensor Power Supply Low?

Yes

• Go to Test Step 2

No

• The condition that caused this symptom is currently not present. 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. Repair as necessary.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Passenger Window Motor Short






• With the scan tool, erase DTCs.

• Turn the ignition OFF.

• Disconnect the passenger window motor harness connector.

• The graphic shows the right hand drive connector. See the schematic for the left hand drive connectors.

• Turn the ignition ON.

• Operate the passenger window switch UP and DOWN several times.

• With the scan tool, check for DTCs.

Does the scan Tool Display B1863 - Passenger Window Position Sensor Power Supply Low?

Yes

• Go to Test Step 3

No

• Replace the passenger window motor.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - Passenger Window Hall Sensor Supply Circuit Short to Ground






• Turn the ignition OFF.

• Disconnect the passenger door module C4 harness connector.

• Measure the resistance between ground and the passenger window hall sensor supply circuit.

Is the resistance more than 10k ohms?

Yes

• Replace the passenger door module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the passenger window hall sensor supply circuit for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior