Pinpoint Test D: The Power Seat Does Move Horizontally/Vertically - Passenger

Seats

Pinpoint Test D: The Power Seat Does Move Horizontally/Vertically - Passenger

Refer to Wiring Diagram Set 120, Seating for schematic and connector information [1][2]Diagrams By Number.

Normal Operation

The seat control switch supplies battery voltage and ground to 1 of 3 power seat track motors through horizontal motor circuits CPS33 (WH) and CPS38 (GN/BU), front height motor circuits CPS34 (GY/BU) and CPS35 (VT/GN) or rear height motor circuits CPS36 (YE/GY) and CPS37 (WH/BU) to move the seat in the desired direction.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Seat control switch

- Seat track motor

PINPOINT TEST D : THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - PASSENGER

D1 CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION

- Operate the passenger seat control switch to the forward and rearward positions.

Does the seat move horizontally?

Yes
GO to D2.

No
GO to D9.

D2 DETERMINE THE SEAT HEIGHT ADJUST FAILURE

- Determine the seat height adjust failure.

Does the seat front or rear height adjust up and down?

Yes
If only the front height adjust operates, GO to D3.

If only the rear height adjust operates, GO to D6.

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

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D3 CHECK FOR VOLTAGE TO THE REAR HEIGHT MOTOR

- Ignition OFF.

- Depower the SRS (Supplemental Restraint System). Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of Restraints and Safety Systems &/or Air Bag Systems.

- Disconnect: Passenger Seat Side Air Bag C337.

- Disconnect: Passenger Power Seat Motor Assembly C3015.

- 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.

- Measure the voltage between passenger power seat motor assembly C3015-8, circuit CPS36 (YE/GY) and C3015-2, circuit CPS37 (WH/BU), harness side, while operating the seat control switch rear height up and down.





Is the voltage greater than 10 volts when the seat control switch is toggled in both directions and 0 volt in the rest position?

Yes
INSTALL a new power seat track. REFER to Seat Track - Power . TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
GO to D4.

D4 CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN

- Disconnect: Passenger Seat Control Switch C3190.

- Measure the resistance between passenger seat control switch C3190-7, circuit CPS36 (YE/GY), harness side and passenger power seat motor assembly C3015-8, circuit CPS36 (YE/GY), harness side.





Is the resistance less than 5 ohms?

Yes
GO to D5.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D5 CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN

- Measure the resistance between passenger seat control switch C3190-5, circuit CPS37 (WH/BU), harness side and passenger power seat motor assembly C3015-2, circuit CPS37 (WH/BU), harness side.





Is the resistance less than 5 ohms?

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

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D6 CHECK FOR VOLTAGE TO THE FRONT HEIGHT MOTOR

- Ignition OFF.

- Depower the SRS (Supplemental Restraint System). Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of Restraints and Safety Systems &/or Air Bag Systems.

- Disconnect: Passenger Seat Side Air Bag C337.

- Disconnect: Passenger Power Seat Motor Assembly C3015.

- 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.

- Measure the voltage between passenger power seat motor assembly C3015-1, circuit CPS34 (GY/BU) and C3015-7, circuit CPS35 (VT/GN), harness side while operating the passenger seat control switch front height up and down.





Is the voltage greater than 10 volts when the seat control switch is toggled in both directions and 0 volt in the rest position?

Yes
INSTALL a new power seat track. REFER to Seat Track - Power . TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
GO to D7.

D7 CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN

- Disconnect: Passenger Seat Control Switch C3190.

- Measure the resistance between passenger seat control switch C3190-8, circuit CPS34 (GY/BU), harness side and passenger power seat motor assembly C3015-1, circuit CPS34 (GY/BU), harness side.





Is the resistance less than 5 ohms?

Yes
GO to D8.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D8 CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN

- Measure the resistance between passenger seat control switch C3190-1, circuit CPS35 (VT/GN), harness side and passenger power seat motor assembly C3015-7, circuit CPS35 (VT/GN), harness side.





Is the resistance less than 5 ohms?

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

DISCONNECT the battery ground cable. CONNECT driver seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D9 CHECK FOR VOLTAGE TO THE HORIZONTAL MOTOR

- Ignition OFF.

- Depower the SRS (Supplemental Restraint System). Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of Restraints and Safety Systems &/or Air Bag Systems.

- Disconnect: Passenger Seat Side Air Bag C337.

- Disconnect: Passenger Power Seat Motor Assembly C3015.

- 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.

- Measure the voltage between passenger power seat motor assembly C3015-3, circuit CPS33 (WH) and C3015-5, circuit CPS38 (GN/BU), harness side while operating the seat control switch forward and rearward.





Is the voltage greater than 10 volts when the seat control switch is toggled in both directions and 0 volt in the rest position?

Yes
INSTALL a new power seat track. REFER to Seat Track - Power . TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
GO to D10.

D10 CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN

- Disconnect: Passenger Seat Control Switch C3190.

- Measure the resistance between passenger seat control switch C3190-6, circuit CPS33 (WH), harness side and driver power seat motor assembly C3015-3, circuit CPS33 (WH), harness side.





Is the resistance less than 5 ohms?

Yes
GO to D11.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

D11 CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN

- Measure the resistance between passenger seat control switch C3190-3, circuit CPS38 (GN/BU), harness side and driver power seat motor assembly C3015-5, circuit CPS38 (GN/BU), harness side.





Is the resistance less than 5 ohms?

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

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.

No
REPAIR the circuit. TEST the system for normal operation.

DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS (Supplemental Restraint System). REFER to Restraints and Safety Systems &/or Air Bag Systems.