What does it mean?
B1992 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Right Power Sliding Door Sensor Supply Circuit High .
Symptoms
- Right power sliding door will not run under power at all
- Group of sensor codes stored at the same time rather than one isolated fault
- Door stops during a cycle and beeps
- Manual operation still works normally
- Fault stays present continuously when a solid short is involved
Likely causes
- Reference wire chafed against a battery or motor feed in the door or track harness
- Water inside a connector linking a power pin to the reference pin
- Sensor damaged internally so its supply pin is pulled up
- Terminal fitted into the wrong cavity after a repair, putting a feed on the reference
- Repair splice or accessory wiring connected to the wrong circuit
- Regulator fault inside the sliding door control module
- High resistance module ground, which raises all voltages measured against it
How to fix it
- Measure the reference voltage at the module and at a door sensor connector and compare the readings
- Unplug the module and check whether voltage remains on the reference wire, which proves an external feed
- Split the harness at intermediate connectors to find the section where the feed touches the reference
- Check the module ground with a voltage drop test before condemning the module
- Disconnect each sensor in turn to see whether one of them is pulling the reference up
- Inspect the flexible track harness and the door jamb connector for chafe, water and mis inserted terminals
- Repair the wiring or replace the faulty sensor or module, then clear the codes and confirm the reference is correct during a full door cycle