Pinpoint Test V : Transmission Range Sensor

V1 RETRIEVE AND RECORD ALL DTCS.

Using the diagnostic scan tool, retrieve all DTCs.

Are DTCs P0706, P0707, P0708, P0709, P1702, P1705 and/or P1921 present?

Yes	For DTCs P0706, P0707, P0708, P0709, P1702 and/or P1921, GO to V2. For DTC P1705, GO to V9.
No	GO to Symptom Chart .

V2 CHECK THE TR SENSOR CIRCUITS FOR POWER

Ignition OFF.

Disconnect: Transmission Vehicle Harness C168 .

Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Ignition ON.

Measure the voltage between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-4	VET29 (VT/WH)	-	Ground
C168-5	VET30 (YE)	-	Ground
C168-7	VET32 (VT)	-	Ground

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Is the voltage greater than 10 volts?

Yes	GO to V3.
No	GO to V5.

V3 CHECK THE TR SENSOR CIRCUITS FOR POWER

Ignition OFF.

Disconnect: Transmission Vehicle Harness C168 .

Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Ignition ON.

Measure the voltage between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-6	VET31 (BU/OG)	-	Ground

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Is the voltage approximately 5 volts?

Yes	GO to V4.
No	GO to V5.

V4 CHECK THE TR SENSOR GROUND CIRCUIT

Measure the voltage between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-4	VET29 (VT/WH)	C168-8	RET24 (BN/BU)

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Is the voltage less than 10 volts?

Yes	REPAIR the circuit.
No	GO to V7.

V5 CHECK THE TR SENSOR CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: PCM C1551E .

Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Measure the resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-4	VET29 (VT/WH)	C1551E-41	VET29 (VT/WH)
C168-5	VET30 (YE)	C1551E-39	VET30 (YE)
C168-6	VET31 (BU/OG)	C1551E-40	VET31 (BU/OG)
C168-7	VET32 (VT)	C1551E-38	VET32 (VT)
C168-8	RET24 (BN/BU)	C1551E-32	RET24 (BN/BU)

Courtesy of FORD MOTOR COMPANY

Is the resistance greater than 3 ohms?

Yes	REPAIR the circuit.
No	GO to V6.

V6 CHECK THE TR SENSOR CIRCUIT FOR A SHORT TO GROUND

Measure the resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-4	VET29 (VT/WH)	-	Ground
C168-5	VET30 (YE)	-	Ground
C168-6	VET31 (BU/OG)	-	Ground
C168-7	VET32 (VT)	-	Ground

Courtesy of FORD MOTOR COMPANY

Is the resistance less than 3 ohms?

Yes	REPAIR the circuit.
No	INSTALL a new PCM. REFER to Electronic Engine Controls . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download .

V7 CHECK THE TR SENSOR CIRCUITS SHORTED TOGETHER.

Measure the resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-8	RET24 (BN/BU)	C168-4	VET29 (VT/WH)
C168-8	RET24 (BN/BU)	C168-5	VET30 (YE)
C168-8	RET24 (BN/BU)	C168-6	VET31 (BU/OG)
C168-8	RET24 (BN/BU)	C168-7	VET32 (VT)
C168-4	VET29 (VT/WH)	C168-5	VET30 (YE)
C168-4	VET29 (VT/WH)	C168-6	VET31 (BU/OG)
C168-4	VET29 (VT/WH)	C168-7	VET32 (VT)
C168-5	VET31 (BU/OG)	C168-7	VET32 (VT)

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Are all the resistances greater than 10, 000 ohms?

Yes	GO to V8.
No	REPAIR the circuits having less than 10, 000 ohms between other TR sensor circuits.

V8 CHECK THE TR SENSOR SOLENOID BODY ASSEMBLY

Remove the main control cover. REFER to Main Control Cover - 3.5L GTDI .

Measure the component side resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
4	-	1	-
5	-	2	-
6	-	3	-
7	-	4	-
8	-	5	-

Courtesy of FORD MOTOR COMPANY

Is the resistance less than 0.5 ohms?

Yes	REPLACE the TR sensor. REFER to Transmission Range (TR) Sensor .
No	INSTALL a new solenoid body assembly. REFER to Solenoid Body Assembly . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download . PERFORM the Solenoid Body Strategy Drive Cycle, REFER to Solenoid Body Strategy Drive Cycle .

V9 ON DEMAND SELF-TEST

Check to make sure the transmission harness connector is fully seated, terminals are engaged in connector and in good condition before proceeding.

Using the diagnostic scan tool, make sure the selector lever is in the PARK or NEUTRAL position.

Perform the KOEO self-test.

Did DTC P1705 return?

Yes	VERIFY selector lever cable adjustment. REFER to Automatic Transaxle Transmission External Controls Select Shift or REFER to Automatic Transaxle-Transmission External Controls Column Shift .
No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.