Doors

DTC 022

CIRCUIT DESCRIPTION
The rear side door actuator control module uses an optical sensor to monitor the sliding door position at all times. The optical sensor requires a 5-volt reference and reference return from the rear side door actuator control module. There are 2 signal circuits from the optical sensor to the rear side door actuator control module. The optical sensor sends pulses through both signal circuits to the power sliding door (PSD) module whenever the sliding door is in motion. The optical sensor pulses allow the rear side door actuator control module to calculate the position of the sliding door at all times. The optical sensor signal circuits switch from 0.01-4.5 volts as the sliding door is moving.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC 022 Optical Sensor Inactive With Door in Motion

CONDITIONS FOR RUNNING THE DTC
A DTC 022 may be set whenever the sliding door is in motion.

CONDITIONS FOR SETTING THE DTC
The rear side door actuator control module does not detect the optical sensor pulses while the sliding door opening or closing.

ACTION TAKEN WHEN THE DTC SETS
- The rear side door actuator control module will attempt to operate the door and stop if the condition is current.
- The rear side door actuator control module sets DTC 022.

CONDITIONS FOR CLEARING THE DTC
All stored DTCs are cleared whenever the on-board diagnostic modes are exited.

DIAGNOSTIC AIDS
- Inspect the optical sensor connector and terminals for damage.
- Inspect the optical sensor pigtail harness for damage.
- Inspect the optical sensor for proper installation and a secure mount to the actuator motor housing.

TEST DESCRIPTION

Steps 1 - 11:

Step 12:

The numbers below refer to the step numbers on the diagnostic table.
2. Tests the rear side door actuator control module for the optical sensor 5-volt reference and ground.
3. Tests the optical sensor signal circuit. While the door is moving at the approximate power operating speed the average voltage measured should be 2-3 volts.
4. Tests the optical sensor signal circuit. While the door is moving at the approximate power operating speed the average voltage measured should be 2-3 volts.