B1D35
B1D35-DRIVER MIRROR HEATER CONTROL CIRCUIT OPEN
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
When the Mirror Heater Driver Output is turned on.
- Set Condition:
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If the Driver Door Module senses voltage on the (C110) Driver Mirror Heater Driver circuit within 10 ms of turning on the Mirror Heater
Driver Output.
1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Verify that the Rear Window Defogger (EBL) mode switch is off (EBL status indicator not illuminated).
3. With the scan tool, record and erase DTCs.
4. Turn the ignition off, wait 10 seconds, then turn the ignition on.
5. Press the Rear Window Defogger (EBL) mode switch on.
6. With the scan tool, read DTCs.
Does the scan tool display: B1D35-DRIVER MIRROR HEATER CONTROL CIRCUIT OPEN?
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 the BODY VERIFICATION TEST. See: Verification Tests/Body Verification Test.
2. TEST FOR AN OPEN OUTSIDE REARVIEW MIRROR
1. Press the Rear Window Defogger (EBL) mode switch off.
2. Turn the ignition off.
3. Disconnect the Driver Outside Rearview Mirror connector.
4. Connect a 12-volt test light between the (C110) Driver Mirror Heater Driver circuit and the (C910) Driver Mirror Heater Return circuit.
5. Turn the ignition on.
6. Press the Rear Window Defogger (EBL) mode switch on.
Does the test light illuminate brightly?
Yes
- Replace the Outside Rearview Mirror.
- Perform the BODY VERIFICATION TEST. See: Verification Tests/Body Verification Test.
No
- Go To 3
3. CHECK THE (C110) DRIVER MIRROR HEATER DRIVER CIRCUIT FOR AN OPEN
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1. Turn the ignition off.
2. Disconnect the Driver Door Module C1 connector.
3. Measure the resistance of the (C110) Driver Mirror Heater Driver circuit between the Driver Outside Rearview Mirror connector and the
Driver Door Module C1 connector.
Is the resistance below 2.0 ohms?
Yes
- Go To 4
No
- Repair the (C110) Driver Mirror Heater Driver circuit for an open.
- Perform the BODY VERIFICATION TEST. See: Verification Tests/Body Verification Test.
4. CHECK THE (C910) DRIVER MIRROR HEATER RETURN CIRCUIT FOR AN OPEN
1. Measure the resistance of the (C910) Driver Mirror Heater Return circuit between the Driver Outside Rearview Mirror connector and the
Driver Door Module C1 connector.
Is the resistance below 2.0 ohms?
Yes
- Replace the Driver Door Module.
- Perform the BODY VERIFICATION TEST. See: Verification Tests/Body Verification Test.
No
- Repair the (C910) Driver Mirror Heater Return circuit for an open.
- Perform the BODY VERIFICATION TEST. See: Verification Tests/Body Verification Test.
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