Diagnostic Aids

Perform this test only when directed here. This system test is intended to diagnose the following:

• ETC Throttle Position (TP) sensor.
• ETC throttle body control motor.
• ETC throttle body assembly.
• Harness Circuits: TP1, TP2, ETCREF, ETCRTN.
• Powertrain Control Module (PCM).

Fig 1: Identifying ETC Motor Circuits & Connector Terminals

Courtesy of FORD MOTOR CO.

For TP sensor circuit and connector terminals, see Fig 2 .

Fig 2: Identifying TP Sensor Circuit & Connector Terminals - LS & Thunderbird

Courtesy of FORD MOTOR CO.