Test C: Reference Voltage (VREF)

Warning And Accelerator Pedal Position (APP) Sensor Connector:

Accelerator Pedal Position (APP) Sensor Connector And Air Conditioning Pressure (ACP) Transducer Sensor Connector:

Air Conditioning Pressure (ACP) Transducer Sensor Connector And Differential Pressure Feedback EGR Sensor Connector:

EGR System Module (ESM) Connector And Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector:

Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector:

Fuel Rail Pressure Temperature (FRPT) Sensor Connector And Fuel Tank Pressure (FTP) Sensor Connector:

Manifold Absolute Pressure (MAP) Sensor Connector:

Power Steering Pressure (PSP) Sensor Connector And Throttle Position (TP) Sensor Connector:

Powertrain Control Module (PCM) Connector:

Sensors Connected To VREF/ETCREF:

C1-C2:

C3-C4:

C5-C6:

C7-C9:

C10-C12:

C13-C15:

C16-C17:

C18-C20: