Description The ECM constantly generates 5 V of power from the battery voltages supplied to the +B (BATT) terminal to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit.

Description When the ignition switch is turned to ON, battery voltage is applied to the IGSW of the ECM. The output signal from the MREL terminal of the ECM causes a current to flow to the coil, closing the contacts of the integration relay (EFI relay) and supplying power to either terminal +B or +B2 of the ECM.

DTC P2A00 A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) DTC P2A03 A/F Sensor Circuit Slow Response (Bank 2 Sensor 1) Description DTC P2A00 P2A03

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) Description DTC P2195 P2196 P2197 P2198

DTC P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance Description DTC P2121 Monitor description Fail-safe Wiring diagram Inspection procedure

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 P2119 Throttle Actuator Control Throttle Body Range / Performance System description DTC P2119 Monitor description Fail-safe Wiring diagram Inspection procedure

DTC P2118 Throttle Actuator Control Motor Current Range / Performance Description DTC P2118 Monitor description Fail-safe Wiring diagram Inspection procedure

DTC P2111 Throttle Actuator Control System - Stuck Open DTC P2112 Throttle Actuator Control System - Stuck Closed System description P2111 P2112

DTC P2102 Throttle Actuator Control Motor Circuit Low DTC P2103 Throttle Actuator Control Motor Circuit High Description DTC P2102 P2103