Diagnostic Aids

Perform this test when instructed during QUICK TEST or if directed by other test procedures. This test is used to diagnose the following:

• Output Shaft Speed (OSS) Sensor
• Wiring Harness Circuits (OSS & SIG RTN)
• Powertrain Control Module (PCM)

Fig 1: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (Cougar & Focus 2.0L M/T)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (Econoline, Expedition, Mustang & Pickup With 4R70W A/T)

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (Escape & Windstar)

Courtesy of FORD MOTOR CO.

Fig 4: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (Explorer, Explorer Sport, Explorer Sport Trac, LS, Mountaineer, Ranger & Thunderbird)

Courtesy of FORD MOTOR CO.

Fig 5: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (Focus 2.0L A/T)

Courtesy of FORD MOTOR CO.

Fig 6: Identifying Output Shaft Speed Sensor Circuits & Harness Connector Terminals (All Others)

Courtesy of FORD MOTOR CO.