B1858

B1858-DRIVER WINDOW POSITION SENSOR POWER SUPPLY LOW







- When Monitored:
Whenever the module is awake.

- Set Condition:
When the Driver Window Hall Sensor Supply circuit falls below 0.8 volt for over 480 ms., this code will set.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, erase all the DTCs.
3. Operate the Driver Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read the DTCs.

Does the scan tool display this DTC?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. DRIVER WINDOW MOTOR SHORTED




1. With the scan tool, erase DTCs.
2. Turn the ignition off.
3. Disconnect the Driver Window Motor harness connector.
4. Turn the ignition on.
5. Operate the Driver Window Switch up and down several times.
6. With the scan tool, read the DTCs.

Does the scan tool display B1858-DRIVER WINDOW POSITION SENSOR POWER SUPPLY LOW?

No

- Replace the Driver Window Motor.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

- Go To 3

3. (Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the Driver Door Module C4 harness connector.
3. Measure the resistance between ground and the (Q305) Driver Window Hall Sensor Supply circuit.

Is the resistance above 10,000 Ohms?

Yes

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

No

- Repair the short to ground in the (Q305) Driver Window Hall Sensor Supply circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.