B1D0C

B1D0C-MIRROR VERTICAL POSITION SENSOR INPUT CIRCUIT LOW

B1D0C, B1D15 - Mirror Vertical Position Sensor Input Circuit Low - Door Module:

WHEN MONITORED
Continuously

SET CONDITION
When the Drive Door Module senses less than 0.16 of volts on the Mirror Vertical Position Signal circuit for over 100 ms, this code will set.

POSSIBLE CAUSES
- (P145) Mirror position sensor supply circuit open.
- (P67) mirror vertical position signal circuit short to ground
- (P67) mirror vertical position signal circuit open
- Outside rearview mirror
- Driver door module

Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC's
Operate the Mirror Switch in all directions several times.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC's.

Q: Does the scan tool display B1D0C-MIRROR VERTICAL POSITION SENSOR INPUT CIRCUIT LOW?

YES: Go To 2
NO: The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. (P145) OR (P146) MIRROR POSITION SENSOR SUPPLY






Turn the ignition off.
Disconnect the appropriate mirror connector.
Turn the ignition on.
Measure the voltage of the (P145) Mirror Position Sensor Supply circuit and ground at the mirror connector.

Q: Is the voltage above 4.8 volts?

No: Go To 6
Yes: Go To 3


3. (P67) MIRROR VERTICAL POSITION SIGNAL






Reconnect the mirror connector.
Back probe and measure the voltage of the (P67) Mirror Vertical Position Signal circuit at the mirror connector.

Q: Is the voltage between 0.16 and 4.8 volts?

Yes: Go To 5
No: Go To 4

4. (P67) MIRROR VERTICAL POSITION SIGNAL WIRE FOR A SHORT TO GROUND






Turn the ignition off.
Disconnect the appropriate mirror connector.
Disconnect the appropriate Door Module C4 connector.
Measure the resistance of the (P67) Mirror Vertical Position Signal circuit and ground at the Door Module C4 connector.

Q: Is the resistance below 2.0 Ohms?

YES: Repair the (P67) Mirror Vertical Position Signal circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

NO: Replace the Mirror.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

5. TEST THE (P67) MIRROR VERTICAL POSITION SIGNAL WIRE FOR AN OPEN






Gain access to the appropriate Door Module C4 connector.
Back probe and measure the voltage of the (P67) Mirror Vertical Position Signal circuit at the C4 connector.

Q: Is the voltage the same as measured at the mirror in the previous step?

No: Repair the (P67) Mirror Vertical Position Signal circuit for an open from the mirror.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

Yes: Replace the Driver Door Module.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

6. (P145) MIRROR POSITION SENSOR SUPPLY WIRE OPEN






Gain access to the appropriate Door Module C4 connector.
Back probe and measure the voltage of the (P145) Mirror Position Sensor Supply circuit at the Door Module C4 connector.

Q: Is the voltage above 4.8 volts?

Yes: Repair the (P145) Mirror Position Sensor Supply circuit for an open to the mirror.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test


No: Replace the appropriate Door Module.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test