Low Beam Output Fault
Table of contents
B2472 CADILLAC Possible Causes
- Faulty Headlight Switch
- Headlight Switch harness is open or shorted
- Headlight Switch circuit poor electrical connection
- Faulty Headlight Relay
- Faulty Platform Zone Module (PZM)
How do I fix code B2472 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 B2472 CADILLAC code
The cost of diagnosing the B2472 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)
B2472 CADILLAC Description
Low beams are commanded by Platform Zone Module (PZM) through an output to headlight relay. When the output is grounded, headlight input to IPC is also grounded.
A short to ground will be tested when exterior lights power is active, low beam output is inactive, headlight switch is not active, and Diagnostic Trouble Code (DTC) B1970 is not set as current. A short to the battery will be tested when exterior lights power is active, low beam output is active, and DTC B1970 is not set as current.
DTC B2472 will set when commanded state of low beams does not match the feedback state. When DTC B2472 is set, PZM will continue to command the state requested until IPC revokes request. DTC B2472 will clear when the commanded state matches the feedback state.