Display Dimming Pulse Width Modulation Input Circuit
Table of contents
B2622 CADILLAC Possible Causes
- Faulty Instrument Panel (I/P) Dimmer Switch
- Instrument Panel (I/P) Dimmer Switch harness is open or shorted
- Instrument Panel (I/P) Dimmer Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B2622 CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B2622 CADILLAC code
The cost of diagnosing the B2622 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2622 CADILLAC Description
The Body Control Module (BCM) receives a variable voltage signal from the Instrument Panel (I/P) Dimmer Switch requesting to illuminate the I/P controls illumination lamps to a desired intensity. When this occurs, the BCM directly sends a variable voltage based on the I/P dimmer switch position through the I/P lamps supply voltage circuit to the I/P controls illumination lamps.