Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTC's.
3. Wait 30 seconds.
4. Operate the Driver Window switch up and down several times.
5. With the scan tool, read the active DTC's.
  Does the scan tool display B1857-15-DRIVER WINDOW POSITION SENSOR POWER SUPPLY - CIRCUIT SHORT TO BATTERY OR OPEN?
  
  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. Refer to BODY VERIFICATION TEST .
(Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

Fig 1: Checking Driver Window Hall Sensor Supply Circuit For A Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Driver Door Module C4 harness connector.
3. Disconnect the Driver Window Motor harness connector.
4. Turn the ignition on.
5. Measure the voltage between ground and the (Q305) Driver Window Hall Sensor Supply circuit in the Driver Window Motor harness connector and ground.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (Q305) Driver Window Hall Sensor Supply circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
(Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT FOR AN OPEN

Fig 2: Checking Driver Window Hall Sensor Supply Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Measure the resistance of the (Q305) Driver Window Hall Sensor Supply circuit from the Driver Door Module C4 harness connector to the Driver Window Motor harness connector.
  Is the resistance above 2.0 Ohms?
  
  Yes
  - Repair the open in the (Q305) Driver Window Hall Sensor Supply circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4.
(Q991) DRIVER WINDOW HALL SENSOR RETURN CIRCUIT FOR AN OPEN

Fig 3: Checking Driver Window Hall Sensor Return Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (Q991) Driver Window Hall Sensor Return circuit from the Driver Door Module C4 harness connector to the Driver Window Motor harness connector.
  Is the resistance above 2.0 Ohms?
  
  Yes
  - Repair the open in the (Q991) Driver Window Hall Sensor Return circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5.
DRIVER WINDOW HALL SENSOR OPEN

Fig 4: Checking Driver Window Hall Sensor For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Reconnect the Drive Window Motor harness connector.
2. Measure the resistance between the (Q991) Driver Window Hall Sensor Return circuit and the (Q305) Driver Window Hall Sensor Supply circuit in the Driver Door Module C4 harness connector.
  NOTE:
  If the Ohmmeter displays "OL", reconnect the Driver Door Module C4 harness connector and move the motor to a different position. Disconnect the Driver Door Module C4 harness connector and check the resistance again. If the Ohmmeter still displays "OL", re-try moving the motor again and re-check.
  
  Is the resistance between 500, 000 and 650, 000 (500k and 650k) Ohms?
  
  Yes
  - Replace the Door Module in accordance with the Service Information
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Window Motor in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .