Tests AH: The Power Liftgate Does Not Stop/Reverse When Obstacle Is Present

PINPOINT TEST AH: THE POWER LIFTGATE DOES NOT STOP/REVERSE WHEN OBSTACLE IS PRESENT

AH1-AH4:

AH4-AH6:

AH6-AH7:

Normal Operation
When the power liftgate moves in the close direction, the PLG module monitors the pinch strips and optical sensor for obstacle detection. The PLG module uses a 5-volt reference signal on circuit 1966 (LB/BK) and a return signal on circuit 1967 (GY/OG) for the left pinch strip. The PLG module uses a 5-volt reference signal on circuit 1965 (VT) and a return signal on circuit 1967 (GY/OG) for the right pinch strip. The right and left pinch strip return signal circuits are spliced together.

Possible Causes
- PLG module DTC B2931 Optical Sensor 1 Short To Battery Or Open
- PLG module DTC B2932 Optical Sensor 1 Short To Ground
- PLG module DTC B2933 Optical Sensor 2 Short To Battery Or Open
- PLG module DTC B2934 Optical Sensor 2 Short To Ground
- circuit 1968 (YE), 1969 (WH/YE) or 1970 (RD/LB) open, short to voltage or short to ground
- circuit 1971 (LB/OG) open
- optical sensor
- PLG module