B1D12
B1D09(DDM), B1D12(PDM) - MIRROR POSITION SENSOR POWER SUPPLY CIRCUIT LOWB1D09(DDM), B1D12(PDM) - Mirror Position Sensor Power Supply Circuit Low:
WHEN MONITORED
Continuously
SET CONDITION
DTC B1D09 - If the Driver Door Module senses voltage is less than 4.3 volts for more than 30 ms on the (P669) Driver Mirror Sensor Supply circuit.
DTC B1D12 - If the Passenger Door Module senses voltage is less than 4.3 volts for more than 30 ms on the (P666) Passenger Mirror Sensor Supply circuit.
POSSIBLE CAUSES
- FOR THE DRIVER MEMORY MIRROR SYSTEM:
- (P669) driver mirror sensor supply circuit shorted to ground
- (P669) driver mirror sensor supply circuit shorted to (Z911) ground circuit
- (P669) driver mirror sensor supply circuit shorted to (P69) driver mirror sensor ground circuit
- (P669) driver mirror sensor supply circuit shorted to (C910) driver mirror heater return circuit
- Driver outside rearview mirror shorted
- Driver door module
- FOR THE PASSENGER MEMORY MIRROR SYSTEM:
- (P666) passenger mirror sensor supply circuit shorted to ground
- (P666) passenger mirror sensor supply circuit shorted to (P66) passenger mirror sensor ground circuit
- (P666) passenger mirror sensor supply circuit shorted to (C917) passenger mirror heater return circuit
- Passenger outside rearview mirror shorted
- Passenger door module
NOTE: This procedure addresses the Driver Memory Mirror system's circuits and components and the Passenger Memory Mirror system's circuits and components. Select only that which applies to the system you are diagnosing.
DIAGNOSTIC TEST
1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTCs.
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 DTCs.
Q: Does the scan tool display: B1D09 or B1D12 MIRROR POSITION SENSOR POWER SUPPLY 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. TEST FOR A SHORTED OUTSIDE REARVIEW MIRROR
For the Driver Memory Mirror System, proceed as follows:
- Turn the ignition off.
- Disconnect the Driver Outside Rearview Mirror connector.
- Turn the ignition on.
- Measure the voltage between the (P669) Driver Mirror Sensor Supply circuit and the (P69) Driver Mirror Sensor Ground circuit.
For the Passenger Memory Mirror System, proceed as follows:
- Turn the ignition off.
- Disconnect the Passenger Outside Rearview Mirror connector.
- Turn the ignition on.
- Measure the voltage between the (P666) Passenger Mirror Sensor Supply circuit and the (P66) Passenger Mirror Sensor Ground circuit.
Q: Is the voltage above 4.6 volts?
YES: Replace the Outside Rearview Mirror.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3
3. CHECK THE (P669) DRIVER MIRROR SENSOR SUPPLY CIRCUIT OR THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND
For the Driver Memory Mirror System, proceed as follows:
- Turn the ignition off.
- Disconnect the Driver Door Module C2 connector.
- Measure the resistance between ground and the (P669) Driver Mirror Sensor Supply circuit in the Driver Door Module C2 connector.
For the Passenger Memory Mirror System, proceed as follows:
- Turn the ignition off.
- Disconnect the Passenger Door Module C2 connector.
- Measure the resistance between ground and the (P666) Passenger Mirror Sensor Supply circuit in the Passenger Door Module C2 connector.
Q: Is the resistance below 10000.0 ohms?
Yes, Driver Mirror
Repair the (P669) Driver Mirror Sensor Supply circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
Yes, Passenger Mirror
Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 4
4. CHECK THE (P669) DRIVER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (Z911) GROUND CIRCUIT
For the Driver Memory Mirror System, proceed as follows:
- Measure the resistance between the (P669) Driver Mirror Sensor Supply circuit and the (Z911) Ground circuit in the Driver Door Module C2 connector.
For the Passenger Memory Mirror System, Go To 5
Q: Is the resistance below 10000.0 ohms?
YES: Repair the (P669) Driver Mirror Sensor Supply circuit for a short to the (Z911) Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 5
5. CHECK THE (P669) DRIVER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (P69) DRIVER MIRROR SENSOR GROUND CIRCUIT OR THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (P66) PASSENGER MIRROR SENSOR GROUND CIRCUIT
For the Driver Memory Mirror System, proceed as follows:
- Measure the resistance between the (P669) Driver Mirror Sensor Supply circuit and the (P69) Driver Mirror Sensor Ground circuit in the Driver Door Module C2 connector.
For the Passenger Memory Mirror System, proceed as follows:
- Measure the resistance between the (P666) Passenger Mirror Sensor Supply circuit and the (P66) Passenger Mirror Sensor Ground circuit in the Passenger Door Module C2 connector.
Q: Is the resistance below 10000.0 ohms?
Yes, Driver Mirror
Repair the (P669) Driver Mirror Sensor Supply circuit for a short to the (P69) Driver Mirror Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
Yes, Passenger Mirror
Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to the (P66) Passenger Mirror Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 6
6. CHECK THE (P669) DRIVER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (C910) DRIVER MIRROR HEATER RETURN CIRCUIT OR THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (C917) PASSENGER MIRROR HEATER RETURN CIRCUIT
For the Driver Memory Mirror System, proceed as follows:
- Measure the resistance between the (P669) Driver Mirror Sensor Supply circuit and the (C910) Driver Mirror Heater Return circuit in the Driver Outside Rearview Mirror connector.
For the Passenger Memory Mirror System, proceed as follows:
- Measure the resistance between the (P666) Passenger Mirror Sensor Supply circuit and the (C917) Passenger Mirror Heater Return circuit in the Passenger Outside Rearview Mirror connector.
Q: Is the resistance below 10000.0 ohms?
Yes, Driver Mirror
Repair the (P669) Driver Mirror Sensor Supply circuit for a short to the (C910) Driver Mirror Heater Return circuit.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
Yes, Passenger Mirror
Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to the (C917) Passenger Mirror Heater Return circuit.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No, Driver Mirror
Replace the Driver Door Module.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No, Passenger Mirror
Replace the Passenger Door Module.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test