P1518
Throttle Actuator Control Module Serial Data Circuit
2002-2007 Buick Rendezvous 3.5L V6
High SeverityPowertrain
Description
The PCM is not receiving serial data from the Throttle Actuator Control module. This communication failure prevents proper throttle control.
Symptoms
- Reduced Engine Power
- Check Engine Light
- Throttle not responding
- Vehicle may not accelerate
- Stalling
Common Causes
- TAC module failure
- Serial data circuit wiring damage
- Corroded connector
- PCM failure
- CAN bus issue
Diagnostic Steps
- Check TAC module power supply
- Test serial data communication
- Inspect wiring between TAC and PCM
- Check for CAN bus faults
- Test TAC module
Repair Notes
Repair communication wiring or replace TAC module.
Related Codes
P1516Throttle Actuator Control Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1516Throttle Actuator Control Module Throttle Actuator Position PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceP1517Throttle Actuator Control Module PerformanceU0107Lost Communication with Throttle Actuator Control Module
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
P1518 on Other Vehicles
Common Questions
What does code P1518 mean on a 2002-2007 Buick Rendezvous?
P1518 stands for "Throttle Actuator Control Module Serial Data Circuit". The PCM is not receiving serial data from the Throttle Actuator Control module. This communication failure prevents proper throttle control.
What are the symptoms of P1518 on a Buick Rendezvous?
Common symptoms of P1518 include: Reduced Engine Power, Check Engine Light, Throttle not responding, Vehicle may not accelerate, Stalling.
What causes P1518 on a 2002-2007 Buick Rendezvous?
Common causes of P1518 include: TAC module failure, Serial data circuit wiring damage, Corroded connector, PCM failure, CAN bus issue.