TCC Enable / Shift Light Circuit
2001-2001 Cadillac DeVille 4.6L V8 Northstar
The 2001 Cadillac DeVille is equipped with a 4.6L V8 engine. Below you'll find detailed p1884 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1884 on Other Vehicles
Common Questions
What does code P1884 mean on a 2001-2001 Cadillac DeVille?
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 Cadillac DeVille?
Common symptoms of P1884 include: Shift light not working, Check Engine Light, TCC not engaging properly.
What causes P1884 on a 2001-2001 Cadillac DeVille?
Common causes of P1884 include: Burnt out shift indicator bulb, Wiring issue to indicator light, TCM driver failure.
Last updated: March 2026