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.
2005 Cadillac XLRFACTORY OEM SERVICE PROCEDURE
Engine Controls (DTC P0638 To P2095)
- DTC P0638
- DTC P0641
- DTC P0650
- DTC P0651
- DTC P0686
- DTC P0687
- DTC P0689
- DTC P0690
- DTC P0700
- DTC P1101
- DTC P1111
- DTC P1112
- DTC P1114
- DTC P1115
- DTC P1137 or P1157
- DTC P1138 or P1158
- DTC P1251
- DTC P1252
- DTC P1253
- DTC P1254
- DTC P1380
- DTC P1381
- DTC P167A or P167B
- DTC P2088, P2090, P2092, or P2094
- DTC P2089, P2091, P2093, or P2095
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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