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

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 F. Pinpoint Test F: 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
- Power seat motor
- Seat track
- DSM

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

NOTE: If a seat equipped with a seat mounted side air bag is being repaired, the Supplemental Restraint System (SRS) must be depowered. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.

NOTE: The air bag warning lamp illuminates when the Restraints Control Module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate an SRS fault.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

NOTE: If a new DSM has been installed, all seat soft stops must be reset. 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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E1 RETRIEVE THE DSM DTCs

- Enter the following diagnostic mode on the scan tool: Self Test - DSM.
- Are any DSM DTCs retrieved?

Yes
If DTCs B1663, B1664, B1665 and B1666 are all retrieved, GO to E2.

If DTC B1663, GO to E11.

If DTC B1664, GO to E14.

If DTC B1665, GO to E17.

If DTC B1666, GO to E20.

If DTC B1703, B1707, B1711, B1715, B1719, B1723, B1727 or B1731, GO to E8.

For any other DSM DTCs, REFER to the Driver Seat Module (DSM) DTC Chart. Driver Seat Module (DSM) DTC Chart

No
GO to E4.

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E2 CHECK FOR VOLTAGE TO THE DSM

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: DSM C341A.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Measure the voltage between DSM C341A-1, circuit CBX05 (VT/RD), harness side and ground.

- Is the voltage greater than 10 volts?

Yes
GO to E3.

No
VERIFY Battery Junction Box (BJB) fuse 74 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify possible causes of the circuit short. CLEAR the DTCs. REPEAT the self-test. Diagrams By Number

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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E3 CHECK THE DSM GROUND CIRCUIT FOR AN OPEN

- Measure the resistance between DSM C341A-2, circuit GD906 (BK/GY), harness side and ground.

- Is the resistance 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.

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. CLEAR the DTCs. REPEAT the self-test.

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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E4 MONITOR THE DSM PIDs AND CHECK FOR CORRECT SEAT CONTROL SWITCH INPUTS

- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- Driver Power Seat Front Up/Down Switch (SFNT_SW)
- Driver Power Seat Forward/Backward Switch (SFWD_SW)
- Driver Power Seat Recline Switch Status (SRCL_SW)
- Driver Power Seat Rear Up/Down Switch (SREARSW)
- Operate the seat control switch in all positions while monitoring the DSM driver seat control switch input status PIDs.
- Do the PID values agree with the switch positions?

Yes
GO to E10.

No
If no response from any PID, GO to E5. Otherwise, GO to E7.

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E5 CHECK VOLTAGE TO THE SEAT CONTROL SWITCH

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: Seat Control Switch C369.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Measure the voltage between seat control switch C369-5, circuit CBX04 (WH/RD), harness side and ground.

- Is the voltage greater than 10 volts?

Yes
GO to E6.

No
VERIFY Body Control Module (BCM) fuse 5 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify possible causes of the circuit short. Diagrams By Number

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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E6 CHECK THE SEAT CONTROL SWITCH GROUND FOR AN OPEN

- Measure the resistance between seat control switch C369-3, circuit GD904 (BK/BU), harness side and ground.

- Is the resistance less than 5 ohms?

Yes
INSTALL a new seat control switch. REFER to Seat Control Switch Seat Control Switch. CLEAR the DTCs. TEST the system for normal operation.

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. CLEAR the DTCs. REPEAT the self-test.

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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E7 CHECK THE AFFECTED CIRCUITS BETWEEN THE SEAT CONTROL SWITCH AND DSM FOR AN OPEN

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: DSM C341B.
- Disconnect: Seat Control Switch C369.
- Measure the resistance between seat control switch C369, harness side and DSM C341B, harness side using the following chart:

- Are the resistances less than 5 ohms?

Yes
INSTALL a new seat control switch. REFER to Seat Control Switch Seat Control Switch. CLEAR the DTCs. TEST the system for normal operation.

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

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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E8 CHECK THE SEAT CONTROL SWITCH

- Remove the seat control switch. Refer to Seat Control Switch Seat Control Switch.
- Check the seat control switch.

- Is the seat control switch OK?

Yes
GO to E9.

No
INSTALL a new seat control switch. REFER to Seat Control Switch Seat Control Switch. CLEAR the DTCs. TEST the system for normal operation.

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E9 CHECK THE AFFECTED CIRCUITS BETWEEN THE SEAT CONTROL SWITCH AND DSM FOR A SHORT TO VOLTAGE

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: DSM C341B.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Ignition ON.
- Measure the voltage between seat control switch C369, harness side and ground using the following chart:

- Is any voltage present on any circuit?

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

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

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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E10 CHECK THE DSM FOR CORRECT OUTPUTS

- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- Front Motor Up (FRONT_UP)
- Front Motor Down (FRONT_DWN)
- Rear Motor Up (REAR_UP)
- Rear Motor Down (REAR_DWN)
- Horizontal Motor Forward (HORZ_FWD)
- Horizontal Motor Backward (HORZ_BWD)
- Recline Motor Forward (RECL_FWD)
- Recline Motor Backward (RECL_BWD)
- Toggle the DSM active commands ON and OFF while monitoring the seat movement.
- Does the driver seat operate correctly using the active commands?

Yes
The fault is intermittent. CHECK the electrical connectors for corrosion, poor pin contact or pushed out pins, particularly the pins and terminals of electrical connectors that were disconnected. Do not install any new components at this time. Components should only be installed when directed to do so in the pinpoint test. REPAIR any intermittent wiring, terminal or connector concerns found. CLEAR the DTCs. REPEAT the self-test.

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
If no front height seat movement, GO to E11.

If no rear height seat movement, GO to E14.

If no horizontal seat movement, GO to E17.

If no seat recliner movement, GO to E20.

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E11 CHECK THE FRONT HEIGHT MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: Front Height Motor C382.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- 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 Track Seat Track. CLEAR the DTCs. REPEAT the self-test.

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 E12.

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E12 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.

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 E13.

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E13 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.

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.

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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E14 CHECK THE REAR HEIGHT MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: Rear Height Motor C363.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- 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 Track Seat Track. CLEAR the DTCs. REPEAT the self-test.

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 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.

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 E16.

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E16 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.

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.

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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E17 CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: Driver Seat Horizontal Motor C362.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- 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 Track Seat Track. CLEAR the DTCs. REPEAT the self-test.

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 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.

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 E19.

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E19 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.

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.

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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E20 CHECK THE RECLINER MOTOR FOR CORRECT OPERATION USING ACTIVE COMMANDS

- Ignition OFF.
- Depower the SRS. Refer to Supplemental Restraint System Supplemental Restraint System (SRS) Depowering and Repowering.
- Disconnect: Driver Seat Side Air Bag Module C3051.
- Disconnect: Seat Recliner Motor C3187.

- WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.

- Connect the battery ground cable. Refer to Battery, Mounting and Cables Battery Disconnect.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - DSM.

- 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 Recliner Motor Seat Recliner Motor. CLEAR the DTCs. REPEAT the self-test.

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 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.

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 E22.

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E22 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.