Diagnostic Instructions
DTC Descriptor
DTC B1017: Output Driver Module Performance
Circuit/System Description
The rear wiper motor is supplied battery positive voltage and ground. The liftgate control module controls rear wiper motor operation through the rear wiper motor speed signal circuit. The rear wiper motor speed signal circuit is supplied a battery positive
reference voltage by the rear wiper motor module and is pulse width modulated to ground by the liftgate control module. The duty cycle of the pulse width modulation (PWM) determines the rear wiper motor operating mode.
Conditions for Running the DTC
The battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
The rear wiper motor speed signal circuit is open or shorted to ground.
Action Taken When the DTC Sets
The rear wiper/washer system will be disabled for as long as the DTC is current.
Conditions for Clearing the DTC
• | This DTC will clear on current status after the condition for setting the fault is corrected and the ignition is cycled. |
• | A history DTC will clear after 100 consecutive ignition cycles without a fault present. |
Reference Information
Schematic Reference
Wiper/Washer Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Rear Wiper/Washer System Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
for scan tool information
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the rear window wiper motor.
- Test for less than 1.0 ohm between the ground circuit terminal A and ground.
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
- Verify that a test lamp illuminates between the B+ circuit terminal C and ground.
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
- Connect the harness connector at the rear window wiper motor.
- Disconnect the X2 harness connector at the LGM.
- Ignition ON, test for 10.0-14.0 volts between the signal circuit terminal 3 and ground.
⇒ | If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear window wiper motor. |
- If all circuits test normal, replace the LGM.
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.