Engine Control System (Diagnostic Codes (P0657-U0101) & Circuit Tests)
- SFI System
- DTC P0657: Actuator Supply Voltage Circuit / Open
- DTC P0724: Brake Switch "B" Circuit High
- DTC P1235: High Pressure Fuel Pump Circuit
- DTC P1607: Cruise Control Input Processor
- DTC P2004: Intake Manifold Runner Control Stuck Open (Bank 1); DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank 1)
- DTC P2009: Intake Manifold Runner Control Circuit Low (Bank 1); DTC P2010: Intake Manifold Runner Control Circuit High (Bank 1)
- DTC P2014: Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1); DTC P2016: Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1); DTC P2017: Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1)
- DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
- DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed
- DTC P2118: Throttle Actuator Control Motor Current Range / Performance
- DTC P2119: Throttle Actuator Control Throttle Body Range / Performance
- DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
- DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
- DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1); DTC P2197: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1); DTC P2198: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1)
- DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2240: Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 2 Sensor 1); DTC P2241: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1); DTC P2242: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1); DTC P2255: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1); DTC P2256: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1)
- DTC P2420: Evaporative Emission System Switching Valve Control Circuit High
- DTC P2610: ECM / PCM Internal Engine Off Timer Performance
- DTC U0101: Lost Communication with TCM
- Circuit Tests