B1D0E-14
B1D0E-14-DRIVER MIRROR HORIZONTAL POSITION SENSOR INPUT - CIRCUIT SHORT TO GROUND OR OPEN
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
The mirror position sensor is used in conjunction with the memory system. Anytime the mirror changes position, the sensor changes its value. That value is stored in the door module. When a command from the memory set switch is received, the module will position the mirror to the exact position chosen by the particular driver.
- When Monitored:
Continuously.
- Set Condition:
The Door Module senses more than 400 mA current on the (A856) 5-volt Supply circuit or an open on the (P65) Driver Mirror Horizontal Position Signal circuit for more than two seconds.
1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
4. Operate the Mirror Adjust switch in all directions several times while monitoring the scan tool for DTCs.
Note: After adjusting the mirror in one direction wait at least two seconds before adjusting the mirror in the opposite direction, as this will allow time for an active fault to set if present.
5. With the scan tool, read the active DTCs.
Does the scan tool display: B1D0E-14-DRIVER MIRROR HORIZONTAL POSITION SENSOR INPUT - CIRCUIT SHORT TO GROUND OR OPEN as active?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. For vehicle's equipped with folding outside rearview mirrors, repeat test with mirror folded. If DTC is now active, Go To 2. Otherwise, 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 poor pin fit. Repair as necessary.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
2. CHECK (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Driver Outside Rearview Mirror C1 (Component Side) connector from the Door Module C1 harness connector.
3. Measure the resistance between Ground and the (P65) Driver Mirror Horizontal Position Signal circuit in the Driver Outside Rearview Mirror C1 harness connector.
Is the resistance below 10K Ohms?
Yes
- Repair the (P65) Driver Mirror Horizontal Position Signal circuit for a short to ground. If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror. Outside Rearview Mirror - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 3
3. CHECK (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL CIRCUIT FOR A SHORT TO ANY CIRCUIT GROUND OR RETURN CIRCUITS
1. Disconnect the Driver Outside Rearview Mirror C2 (Component Side) connector.
2. Measure the resistance between the (P65) Driver Mirror Horizontal Position Signal circuit (C1- Cavity 9) and all designated circuit Ground or Return circuits in the Driver Outside Rearview Mirror C1 and C2 (Component Side) harness connectors.
Is the resistance below 20K Ohms between the (P65) circuit and any of the designated circuit Ground or Return circuits?
Yes
- Repair all circuits with a resistance below 20K Ohms for a short to the (P65) Driver Mirror Horizontal Position Signal circuit. If the wiring harness and connectors are okay, replace the Driver Outside Rearview Mirror. Outside Rearview Mirror - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 4
4. CHECK (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL CIRCUIT FOR AN OPEN
1. Connect an ohmmeter between the (P65) Driver Mirror Horizontal Position Signal circuit and the (P69) Driver Mirror Sensor Ground circuit in the Driver Outside Rearview Mirror C1 (Component Side) harness connector.
2. Manually move the mirror from Left to Right while observing the ohmmeter.
Does the resistance measure between approximately 1.2K Ohms and 2.4K Ohms as you move the mirror from Left to Right?
Yes
- Replace the Driver Door Module. Door Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace the Driver Outside Rearview Mirror. Outside Rearview Mirror - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.