PINPOINT TEST C: DTCs P0815, P0816 (FLOOR SHIFT)

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

C1 READ AND RECORD ALL DTCs
- Ignition ON.
- Connect the scan tool.
- Using a scan tool, retrieve DTCs.
Is DTC P0815 set?
- Yes : CLEAR the DTC. RUN the KOEO self-test. If the DTC P0815 returns, GO to C2 .
- No : CLEAR the DTC. RUN the KOEO self-test. If the DTC P0816 returns, GO to C7.

C2 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR VOLTAGE

Ignition OFF.
Disconnect: Selector Lever C3245 .
Inspect for damaged or pushed out terminals.
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-9	CET43 (GY)	-	Ground

Fig 1: Checking Upshift Signal Circuit For Voltage (C2)

Courtesy of FORD MOTOR CO.

Is the voltage greater that 10 volts?

Yes : GO to C5.
No : GO to C3 .

C3 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: PCM C175B .
Inspect for damaged or pushed out terminals.

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-9	CET43 (GY)	C175B-23	CET43 (GY)

Fig 2: Checking Upshift Signal Circuit For Open (C3)

Courtesy of FORD MOTOR CO.

Is the resistance less than 5 ohms?

Yes : GO to C4 .
No : REPAIR the circuit. CLEAR the DTC.

C4 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-9	CET43 (GY)	-	Ground

Fig 3: Checking Upshift Signal Circuit For Short To Ground (C4)

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10, 000 ohms?

Yes : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .
No : REPAIR the circuit. CLEAR the DTC.

C5 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN

Connect: PCM C175B .
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-9	CET53 (BU/OG)	C3245-8	RE407 (YE/VT)

Fig 4: Checking Signal Return Circuit For Open (C5)

Courtesy of FORD MOTOR CO.

Is voltage greater than 10 volts?

Yes : GO to C6 .
No : REPAIR the circuit. If no open is found, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .

C6 CHECK THE SELECTSHIFT™ SWITCH

Disconnect the SelectShift™ connector in the selector lever assembly.

Measure the component side resistance at the SelectShift™ connector while cycling the SelectShift™ upshift switch.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
9	-	10	-

Is the resistance less than 1.5 ohms?

Yes : INSTALL a new selector lever. REFER to SELECTOR LEVER .
No : INSTALL a new SelectShift™ switch. REFER to SELECTSHIFT™ SWITCH .

C7 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR VOLTAGE

Ignition OFF.
Disconnect: Selector Lever C3245 .
Inspect for damaged or pushed out terminals.
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-10	CET42 (GN/VT)	-	Ground

Fig 5: Checking Downshift Signal Circuit For Voltage (C7)

Courtesy of FORD MOTOR CO.

Is the voltage greater that 10 volts?

Yes : GO to C10.
No : GO to C8 .

C8 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: PCM C175B .
Inspect for damaged or pushed out terminals.

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-10	CET42 (GN/VT)	C175B-24	CET42 (GN/VT)

Fig 6: Checking Downshift Signal Circuit For Open (C8)

Courtesy of FORD MOTOR CO.

Is the resistance less than 5 ohms?

Yes : GO to C9 .
No : REPAIR the circuit. CLEAR the DTC.

C9 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-10	CET42 (GN/VT)	-	Ground

Fig 7: Checking Downshift Signal Circuit For Short To Ground (C9)

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10, 000 ohms?

Yes : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM. with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .
No : REPAIR the circuit. CLEAR the DTC.

C10 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN

Connect: PCM C175B .
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C3245-10	CET42 (GN/VT)	C3245-8	RE407 (YE/VT)

Fig 8: Checking Signal Return Circuit For Open (C10)

Courtesy of FORD MOTOR CO.

Is voltage greater than 10 volts?

Yes : INSTALL a new selector lever. REFER to SELECTOR LEVER . CLEAR the DTC.
No : REPAIR the circuit. If no open is found, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .