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Home >> Ford Truck >> 2011 >> F 350 2WD Super Duty V8-6.2L Flex Fuel >> Repair and Diagnosis >> Body and Frame >> Seats >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically/Recline - Driver, With Memory >> Steps E13-E24

Steps E13-E24




Seats

Pinpoint Tests

Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically/Recline - Driver, With Memory

Refer to Wiring Diagram Set 123, Memory Seats for schematic and connector information. Diagrams By Number

Normal Operation

The seat control switch supplies voltage and ground to the applicable Driver Seat Module (DSM) inputs. The DSM then supplies voltage and ground to the appropriate seat track motor or seat recliner motor to move the seat in the desired direction. There are 3 seat track motors that combine to move the seat horizontally (forward/backward) and vertically (front up/down and rear up/down). The seat recliner mechanism uses a single motor to pivot the seat backrest forward and backward.

The following pinpoint test diagnoses a power seat with memory that does not operate or does not operate correctly. If the seat does not operate using the memory SET switch or operates in one second intervals, GO to Pinpoint Test G. Pinpoint Test G: The Memory Seat Does Not Operate Correctly - Motor(s) Operate In One Second Intervals or Memory Seat Recall No





This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Seat control switch
- Seat track
- Power seat motor
- DSM

PINPOINT TEST E: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY/RECLINE - DRIVER, WITH MEMORY

NOTICE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: If a new DSM has been installed, reset all seat soft stops. If a new seat track or recline motor has been installed, only reset the soft stops for that component being installed new. To reset the soft stops, refer to Principles of Operation. Principles of Operation

NOTE: Verify good battery condition before diagnosing the memory seat system. Poor battery condition may interfere with memory seat operation, even if vehicle starting is possible.

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E13 CHECK THE FRONT HEIGHT MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Disconnect: Front Height Motor C382.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM - PIDs.

- Front Motor Up (FRONT_UP)
- Front Motor Down (FRONT_DWN)
- Measure the voltage between front height motor C382-1, circuit CPS02 (GY/YE) and C382-2, circuit CPS03 (VT/GY), harness side while using the scan tool to operate DSM active commands front motor up and front motor down, ON and OFF.




- Is the voltage greater than 10 volts when commanded ON in both directions and no voltage present when commanded OFF?

Yes
INSTALL a new seat track assembly. REFER to Seat Cushion - Front, Bucket Seat Bucket Seat. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E14.

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E14 CHECK THE FRONT HEIGHT MOTOR CIRCUITS FOR A SHORT TO VOLTAGE

- Ignition OFF.
- Disconnect: DSM C341B.
- Ignition ON.
- Measure the voltage between:
- DSM C341B-23, circuit CPS03 (VT/GY), harness side and ground.
- DSM C341B-11, circuit CPS02 (GY/YE), harness side and ground.




- Is any voltage present on either circuit?

Yes
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E15.

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E15 CHECK FRONT HEIGHT MOTOR CIRCUITS FOR AN OPEN

- Ignition OFF.
- Measure the resistance between:
- DSM C341B-23, circuit CPS03 (VT/GY), harness side and front height motor C382-2, circuit CPS03 (VT/GY), harness side.
- DSM C341B-11, circuit CPS02 (GY/YE), harness side and front height motor C382-1, circuit CPS02 (GY/YE), harness side.




- Are the resistances less than 5 ohms?

Yes
INSTALL a new DSM. REFER to Driver Seat Module (DSM) Service and Repair. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

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E16 CHECK THE REAR HEIGHT MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Disconnect: Rear Height Motor C363.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM - PIDs.

- Rear Motor Up (REAR_UP)
- Rear Motor Down (REAR_DWN)
- Measure the voltage between rear height motor C363-1, circuit CPS05 (BU/WH), harness side and C363-5, circuit CPS04 (YE/OG), harness side while using the scan tool to operate DSM active commands rear motor up and rear motor down, ON and OFF.




- Is the voltage greater than 10 volts when command ON in both directions and no voltage present when commanded OFF?

Yes
INSTALL a new seat track assembly. REFER to Seat Cushion - Front, Bucket Seat Bucket Seat. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E17.

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E17 CHECK THE REAR HEIGHT MOTOR CIRCUITS FOR A SHORT TO VOLTAGE

- Ignition OFF.
- Disconnect: DSM C341B.
- Ignition ON.
- Measure the voltage between:
- DSM C341B-22, circuit CPS05 (BU/WH), harness side and ground.
- DSM C341B-10, circuit CPS04 (YE/OG), harness side and ground.




- Is any voltage present on either circuit?

Yes
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E18.

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E18 CHECK REAR HEIGHT MOTOR CIRCUITS FOR AN OPEN

- Ignition OFF.
- Measure the resistance between:
- DSM C341B-22, circuit CPS05 (BU/WH), harness side and rear height motor C363-1, circuit CPS05 (BU/WH), harness side.
- DSM C341B-10, circuit CPS04 (YE/OG), harness side and rear height motor C363-5, circuit CPS04 (YE/OG), harness side.




- Are the resistances less than 5 ohms?

Yes
INSTALL a new DSM. REFER to Driver Seat Module (DSM) Service and Repair. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

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E19 CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Disconnect: Driver Seat Horizontal Motor C362.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM - PIDs.

- Horizontal Motor Forward (HORZ_FWD)
- Horizontal Motor Backward (HORZ_BWD)
- Measure the voltage between horizontal motor C362-1, circuit CPS01 (GN/BU) and C362-2, circuit CPS06 (GN/WH), harness side while using the scan tool to operate DSM active commands horizontal motor forward and horizontal motor backward, ON and OFF.




- Is the voltage greater than 10 volts when command ON in both directions and no voltage present when commanded OFF?

Yes
INSTALL a new seat track assembly. REFER to Seat Cushion - Front, Bucket Seat Bucket Seat. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E20.

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E20 CHECK THE HORIZONTAL MOTOR CIRCUITS FOR A SHORT TO VOLTAGE

- Disconnect: DSM C341B.
- Ignition ON.
- Measure the voltage between:
- DSM C341B-9, circuit CPS06 (GN/WH), harness side and ground.
- DSM C341B-12, circuit CPS01 (GN/BU), harness side and ground.




- Is any voltage present on either circuit?

Yes
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E21.

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E21 CHECK THE HORIZONTAL MOTOR CIRCUITS FOR AN OPEN

- Ignition OFF.
- Measure the resistance between:
- DSM C341B-12, circuit CPS01 (GN/BU), harness side and horizontal motor C362-1, circuit CPS01 (GN/BU), harness side.
- DSM C341B-9, circuit CPS06 (GN/WH), harness side and horizontal motor C362-2, circuit CPS06 (GN/WH), harness side.




- Are the resistances less than 5 ohms?

Yes
INSTALL a new DSM. REFER to Driver Seat Module (DSM) Service and Repair. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

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E22 CHECK THE RECLINER MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Disconnect: Seat Recliner Motor C3187.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM - PIDs.

- Recline Motor Forward (RECL_FWD)
- Recline Motor Backward (RECL_BWD)
- Measure the voltage between seat recliner motor C3187-1, circuit CPS07 (GY/BN) and C3187-3, circuit CPS08 (VT/OG), harness side while using the scan tool to operate the DSM active commands recline motor forward and recline motor backward, ON and OFF.




- Is the voltage greater than 10 volts when command ON in both directions and no voltage present when commanded OFF?

Yes
INSTALL a new seat recliner motor. REFER to Seat Backrest - Front, Bucket Seat Bucket Seat. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E23.

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E23 CHECK THE RECLINER MOTOR CIRCUITS FOR A SHORT TO VOLTAGE

- Ignition OFF.
- Disconnect: DSM C341B.
- Ignition ON.
- Measure the voltage between:
- DSM C341B-13, circuit CPS07 (GY/BN), harness side and ground.
- DSM C341B-21, circuit CPS08 (VT/OG), harness side and ground.




- Is any voltage present on either circuit?

Yes
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
GO to E24.

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E24 CHECK THE RECLINER MOTOR CIRCUITS FOR AN OPEN

- Ignition OFF.
- Measure the resistance between:
- DSM C341B-13, circuit CPS07 (GY/BN), harness side and recliner motor C3187-1, circuit CPS07 (GY/BN), harness side.
- DSM C341B-21, circuit CPS08 (VT/OG), harness side and recliner motor C3187-3, circuit CPS08 (VT/OG), harness side.




- Are the resistances less than 5 ohms?

Yes
INSTALL a new DSM. REFER to Driver Seat Module (DSM) Service and Repair. CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

No
REPAIR the circuit(s). CLEAR the DTCs. REPEAT the self-test.

For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C3051. REPOWER the SRS. REFER to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

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