P1884
TCC Enable / Shift Light Circuit
2004-2007 Buick Rainier 4.2L I6
Low SeverityPowertrain
Description
The TCM detected a fault in the TCC enable or shift indicator light circuit.
Symptoms
- Shift light not working
- Check Engine Light
- TCC not engaging properly
Common Causes
- Burnt out shift indicator bulb
- Wiring issue to indicator light
- TCM driver failure
Diagnostic Steps
- Test shift light bulb
- Check circuit wiring
- Test TCM output for shift light
Repair Notes
Replace shift indicator bulb or repair wiring.
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P1884 on Other Vehicles
Common Questions
What does code P1884 mean on a 2004-2007 Buick Rainier?
P1884 stands for "TCC Enable / Shift Light Circuit". The TCM detected a fault in the TCC enable or shift indicator light circuit.
What are the symptoms of P1884 on a Buick Rainier?
Common symptoms of P1884 include: Shift light not working, Check Engine Light, TCC not engaging properly.
What causes P1884 on a 2004-2007 Buick Rainier?
Common causes of P1884 include: Burnt out shift indicator bulb, Wiring issue to indicator light, TCM driver failure.