Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2004MONTANA VAN PASSENGERREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXCELLULAR COMMUNICATION DTCS
2004 Pontiac Montana Van Passenger
Cellular Communication DTCS
2004 Pontiac Montana Van PassengerSECTION Cellular Communication DTCS
CELLULAR COMMUNICATION DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC B2455 | Cellular Phone Microphone Circuit |
| DTC B2470 | Cellular Phone Antenna Circuit |
| DTC B2476 | Cellular Phone Select Service Switch Malfunction |
| DTC B2482 | Cellular Phone Select Service Switch Range/Performance |
| DTC B2483 or B2484 | Global Positioning System (GPS) Sensor Circuit |
| DTC U1500 | Inter-device Dedicated Bus 1 |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.