B1F00-14

B1F00-14-DRIVER MIRROR CONTROL SENSOR POSITION CIRCUIT - CIRCUIT SHORT TO GROUND OR OPEN






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 with ignition on.

- Set Condition:
When the Door Module senses an open or short to ground on either the 5-volt supply, the mirror horizontal signal or the mirror vertical position signal circuit for more than two seconds. this code will set.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase the Diagnostic Trouble Codes (DTCs).
3. Turn the driver side turn signal on.
4. Turn the approach lamps on, if equipped.
5. Turn the rear defogger on, if equipped with heated mirror.
6. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
7. 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 DTC to set, if present.

Does the scan tool display: B1F00-14-DRIVER MIRROR CONTROL SENSOR POSITION CIRCUIT - 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 this test with the mirror folded. If this DTC is now active, Go To 2. Otherwise, using the wiring diagrams as a guide, check all related connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK (A856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN AT THE MODULE

NOTE: In this step we are measuring the 5-Volt Supply voltage at the Door Module. It should be over 4.5 volts.

1. Turn the ignition off.
2. Disconnect the Driver Outside Rearview Mirror C1 and C2 (Component Side) harness connectors from the Door Module C1 and C2 sockets.
3. Turn the ignition on.
4. Measure the voltage between Ground and the (A856) 5-volt Supply circuit at the Door Module (C1-Pin 10) (Module Side) socket.

Is the Voltage above 4.5 Volts?

Yes
- Go To 3

No
- Replace the Door Module. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK (A856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Measure the resistance between Ground and the (A856) 5-Volt Supply circuit in the Driver Outside Rearview Mirror C1 connector.

Is the resistance below 10K Ohms

Yes
- Repair the short to ground in the (A856) 5-Volt Supply circuit. If the wiring harness and connector is okay, replace the Driver Outside Rearview Mirror. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 4

4. CHECK (P67) DRIVER MIRROR VERTICAL POSITION SIGNAL CIRCUIT FOR A SHORT TO GROUND




1. Measure the resistance between Ground and the (P67) Driver Mirror Vertical Position Signal circuit in the Driver Outside Rearview Mirror C1 harness connector.

Is the resistance below 10K Ohms?

Yes
- Repair the (P67) Driver Mirror Vertical Position Signal circuit for a short to ground. If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 5

5. CHECK (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL CIRCUIT FOR A SHORT TO GROUND




1. 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. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 6

6. CHECK (P67) DRIVER MIRROR VERTICAL POSITION SIGNAL CIRCUIT FOR AN OPEN




1. Connect an ohmmeter between the (P67) Driver Mirror Vertical 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 Up and Down while observing the ohmmeter.

Does the resistance measure between approximately 1.2K Ohms and 2.4K Ohms as you move the mirror from Up to Down?

Yes
- Go To 7

No
- Replace the Driver Outside Rearview Mirror. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

7. 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
- Go To 8

No
- Replace the Driver Outside Rearview Mirror. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

8. CHECK (A856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO ANY GROUND OR RETURN CIRCUIT




1. Measure the resistance between the (A856) 5-Volt Supply circuit (C1-10) and all designated Ground and Return circuits in the Driver Outside Rearview Mirror C1 and C2 (Component Side) connectors.

Is the resistance below 1.2K Ohms between the (A856) 5-Volt Supply circuit and any Ground or Return circuit?

Yes
- Repair the (A856) 5-Volt Supply circuit for a short to the Ground or Return circuit. If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 9

9. CHECK (A856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN




1. Measure the resistance between the (A856) 5-Volt Supply circuit (C1-10) and all designated Ground and Return circuits in the Driver Outside Rearview Mirror C1 and C2 (Component Side) connectors.

Is the resistance between 1.2K and 5.0K Ohms between the (A856) 5-Volt Supply circuit and one or more of the Ground or Return circuits?

Yes
- Go To 10

No
- Repair the open in the (A856) 5-Volt Supply circuit. If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror in accordance with the Service Information. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

10. CHECK (P67) DRIVER MIRROR VERTICAL POSITION SIGNAL CIRCUIT FOR A SHORT TO ANY CIRCUIT GROUND OR RETURN CIRCUITS




1. Measure the resistance between the (P67) Driver Mirror Vertical Position Signal circuit (C1- Cavity 7) 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 (P67) 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 (P67) Driver Mirror Vertical Position Signal circuit. If the wiring harness and connectors are okay, replace the Driver Outside Rearview Mirror in accordance with the Service Information. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 11

11. CHECK (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL CIRCUIT FOR A SHORT TO ANY CIRCUIT GROUND OR RETURN CIRCUITS




1. 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 in accordance with the Service Information. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Replace the Driver Door Module. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.