P1517high severityPowertrain
Throttle Actuator Control Module Performance
on 2002 Cadillac Escalade 6.0L V8 · 4WD
What this code means
The PCM detected a general performance failure of the Throttle Actuator Control (TAC) module. The TAC module manages electronic throttle control communication.
Symptoms
- Reduced Engine Power
- Check Engine Light
- Limited throttle response
- Possible stalling
Common causes
- TAC module failure
- Communication fault between TAC and PCM
- Wiring issue
- PCM failure
Diagnostic steps
- Test communication between TAC and PCM
- Check TAC module power and grounds
- Inspect wiring
- Test throttle body operation
Repair notes
Replace TAC module or repair communication wiring. Check for PCM software updates.
Other Powertrain codes on this vehicle
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P0002
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P0003
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P0004
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P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1