Possible Causes

No communication with the driver seat module can be caused by

fuse(s).
wiring, terminals, or connectors.
a faulty DSM.

Scheme 69

Scheme 69: PINPOINT TEST A: NO COMMUNICATION WITH THE DRIVER SEAT MODULE (DSM)

Scheme 70

A1 CHECK NGS TESTER COMMUNICATION TO THE DDM Using the results from the DATA LINK DIAGNOSTICS test, check for communication to the DDM. Does the scan tool communicate with the DDM? Yes : GO to A2. No : Go To «PINPOINT TEST B»(ref-207572-S05081007382005113000000) .
A2 CHECK CIRCUITS 29-AH80 (OG/WH) AND 30-AH80 (RD) FOR VOLTAGE WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Driver Seat Side Air Bag Module C316. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Driver Seat Side Air Bag Module C316. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Disconnect: DSM C341b. Disconnect: DSM C341c. Measure the voltage between DSM C341c-10, circuit 29-AH80 (OG/WH), harness side and ground; and between DSM C341b-4, circuit 30-AH80 (RD), harness side and ground. Are the voltages greater than 10 volts? Yes : GO to A3. No : REPAIR the circuit in question. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
A3 CHECK CIRCUIT 31-AH80 (BK) AND 91-AH80 (BN/WH) FOR AN OPEN Measure the resistance between the DSM C341 b-3, circuit 31-AH80 (BK), harness side and ground; and between DSM C341c-2, circuit 91-AH80 (BN/WH), harness side and ground. Are the resistances less than 5 ohms? Yes : REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

No communication with driver door module can be caused by

fuse(s).
wiring, terminals, or connectors.
a faulty DDM.

Scheme 71

Scheme 71: PINPOINT TEST B: NO COMMUNICATION WITH THE DRIVER DOOR MODULE (DDM)

Scheme 72

B1 CHECK CIRCUITS 29-AJ80 (OG) AND 29S-AJ86 (OG/BU) FOR VOLTAGE Key in OFF position. Disconnect: DDM C501 a. Key in ON position. Measure the voltage between DDM C501 a-11, circuit 29-AJ80 (OG), harness side and ground; and between DDM C501a-12, circuit 29S-AJ86 (OG/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to B2. No : REPAIR the circuit in question. Test the system for normal operation.
B2 CHECK CIRCUITS 31-AJ80B (BK/OG) AND 91-AJ80 (BN/BU) FOR OPENS Key in OFF position. Measure the resistance between DDM C501 a-7, circuit 91-AJ80 (BN/BU), harness side and ground; and between DDM C501a-8, circuit 31-AJ80B (BK/OG), harness side and ground. Is the resistance less than 5 ohms? Yes : REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . No : REPAIR the circuit(s) in question. Test the system for normal operation.

An inoperative driver power seat can be caused by

a fuse.
wiring, terminals, or connectors.
a faulty power seat switch.
a faulty power seat motor.

Scheme 73

Scheme 73: PINPOINT TEST C: THE POWER SEAT IS INOPERATIVE - DRIVER

Scheme 74

C1 CHECK CIRCUIT 30-AH35 (RD/YE) FOR VOLTAGE WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Driver Seat Side Air Bag Module C316. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Driver Seat Side Air Bag Module C316. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Disconnect: Driver Seat Control Switch C360. Measure the voltage between driver seat control switch C360-6, circuit 30-AH35 (RD/YE), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to C2. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
C2 CHECK CIRCUIT 31-AH35 (BK/YE) FOR AN OPEN Measure the resistance between driver seat control switch C360-1, circuit 31-AH35 (BK/YE), harness side and ground. Is the resistance less than 5 ohms? Yes : INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

An inoperative passenger power seat can be caused by

a fuse.
wiring, terminals, or connectors.
a faulty power seat switch.
a faulty power seat motor.

Scheme 75

Scheme 75: PINPOINT TEST D: THE POWER SEAT IS INOPERATIVE-PASSENGER

Scheme 76

D1 CHECK FOR POWER TO THE PASSENGER SEAT CONTROL SWITCH WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Passenger Seat Side Air Bag Module C314. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Passenger Seat Side Air Bag Module C314. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Disconnect: Passenger Seat Control Switch C330. Measure the voltage between passenger seat control switch C330-6, circuit 30-AH42 (RD), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to D2. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
D2 CHECK CIRCUIT 31-AH42 (BK) FOR AN OPEN Measure the resistance between passenger seat control switch C330-1, circuit 31-AH42 (BK), harness side and ground. Is the resistance less than 5 ohms? Yes : INSTALL a new passenger seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

A noisy power seat can be caused by

a misaligned seat track.
a faulty seat track component.
an object obstructing seat movement.

A loose power seat can be caused by

loose fastening hardware.
a faulty seat track component.

A power seat that does not make full travel can be caused by

an obstruction.
a faulty seat track component.

A driver power seat that does not move horizontally and/or vertically can be caused by

wiring, terminals, or connectors.
a faulty seat control switch.
a faulty seat track motor.
a faulty backrest recline motor (part of backrest frame assembly).

Scheme 77

Scheme 77: PINPOINT TEST H: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - DRIVER

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H1 CHECK HORIZONTAL DIRECTION MOTOR FOR CORRECT OPERATION WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Driver Seat Side Air Bag Module C316. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Driver Seat Side Air Bag Module C316. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Operate the driver power seat forward and rearward. Will the seat move horizontally? Yes : GO to H2. No : GO to H3 .
H2 CHECK BACKREST MOTOR FOR CORRECT OPERATION Operate the driver power seat backrest up and down. Will the seat backrest move up and down? Yes : GO to H6 . No : GO to H13 .
H3 CHECK THE VOLTAGE TO THE DRIVER SEAT FORWARD/REVERSE MOTOR Disconnect: Driver Seat Forward/Reverse Motor C362. Measure the voltage between driver seat forward/reverse motor C362-2, circuit 32-AH37 (WH/GN), harness side and C362-1, circuit 33-AH37 (YE/GN), harness side, while pushing the driver seat control switch forward and rearward. Is the voltage greater than 10 volts when the switch is pushed forward, greater than -10 volts when the switch is pushed rearward, and 0 volts when the switch is in a rest position? Yes : INSTALL a new driver seat forward/reverse motor. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to H4.
H4 CHECK CIRCUIT 32-AH37 (WH/GN) FOR AN OPEN AND SHORT TO GROUND Disconnect: Driver Seat Forward/Reverse Motor C362. Measure the resistance between driver seat control switch C360-3, circuit 32-AH37 (WH/GN), harness side and driver seat forward/reverse motor C362-2, circuit 32-AH37 (WH/GN), harness side; and between driver seat control switch C360-3, circuit 32-AH37 (WH/GN), harness side and ground. Is the resistance less than 5 ohms between the driver seat forward/reverse motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : GO to H5. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H5 CHECK CIRCUIT 33-AH37 (YE/GN) FOR AN OPEN AND SHORT TO GROUND Measure the resistance between driver seat control switch C360-11, circuit 33-AH37 (YE/GN), harness side and driver seat forward/reverse motor C362-1, circuit 33-AH37 (YE/GN), harness side; and between driver seat control switch C360-11, circuit 33-AH37 (YE/GN), harness side and ground. Is the resistance less than 5 ohms between the driver seat forward/reverse motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H6 DETERMINE SEAT TILTING FAILURE Determine seat tilting failure. Can the seat be tilted forward or backward? Yes : If only forward tilting operates, GO to H7. If only rear tilting operates, GO to H10 . No : INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H7 CHECK THE VOLTAGE TO THE DRIVER SEAT REAR HEIGHT MOTOR Disconnect: Driver Seat Rear Height Motor C363. Measure the voltage between driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side and C363-1, circuit 33-AH41 (YE/VT), harness side, while depressing the rear tilt switch up and down. Is the voltage greater than +10 volts when the rear tilt switch is pressed down, greater than -10 volts when the rear tilt switch is pressed up and 0 volts when the switch is in the rest position? Yes : INSTALL a new driver seat rear height motor. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to H8.
H8 CHECK CIRCUIT 32-AH41 (WH/VT) FOR OPEN AND SHORT TO GROUND Disconnect: Driver Seat Control Switch C360. Measure the resistance between driver seat control switch C360-8, circuit 32-AH41 (WH/VT), harness side and driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side; and between driver seat control switch C360-8, circuit 32-AH41 (WH/VT), harness side and ground. Is the resistance less than 5 ohms between the driver seat rear height motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : GO to H9. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H9 CHECK CIRCUIT 33-AH41 (YE/VT) FOR OPEN AND SHORT TO GROUND Measure the resistance between driver seat control switch C360-9, circuit 33-AH41 (YE/VT), harness side and driver seat rear height motor C363-1, circuit 33-AH41 (YE/VT), harness side; and between driver seat control switch C360-9, circuit 33-AH41 (YE/VT), harness side and ground. Is the resistance less than 5 ohms between the driver seat rear height motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H10 CHECK THE VOLTAGE TO DRIVER SEAT FRONT HEIGHT MOTOR Disconnect: Driver Seat Front Height Motor C382. Measure the voltage between driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side and C382-1, circuit 32-AH38 (WH/BK), while pushing the rear tilting switch up and down. Is the voltage greater than +10 volts when the front tilt switch is pressed down, greater than -10 volts when the front tilt switch is pressed up and 0 volts when the switch is in the rest position? Yes : INSTALL a new driver seat front height motor. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to H11.
H11 CHECK CIRCUIT 32-AH38 (WH/BK) FOR OPEN AND SHORT TO GROUND Disconnect: Driver Seat Control Switch C360. Measure the resistance between driver seat control switch C360-5, circuit 32-AH38 (WH/BK), harness side and driver seat front height motor C382-1, circuit 32-AH38 (WH/BK), harness side; and between driver seat control switch C360-5, circuit 32-AH38 (WH/BK), harness side and ground. Is the resistance less than 5 ohms between the driver seat front height motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : GO to H12. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H12 CHECK CIRCUIT 33-AH38 (YE/BK) FOR OPEN Measure the resistance between driver seat control switch C360-4, circuit 33-AH38 (YE/BK) harness side, and driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side; and between driver seat control switch C360-4, circuit 33-AH38 (YE/BK), harness side and ground. Is the resistance less than 5 ohms between the driver seat front height motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H13 CHECK THE VOLTAGE TO DRIVER SEAT BACKREST MOTOR Disconnect: Driver Seat Backrest Motor C368. Measure the voltage between driver seat backrest motor C368-1, circuit 32-AH36 (WH/RD), harness side and C363-2, circuit 33-AH36 (YE/RD), while pushing the backrest switch forward and rearward. Is the voltage greater than 10 volts when the switch is pushed forward, greater than -10 volts when the switch is pushed rearward, and 0 volts when the switch is in a rest position? Yes : INSTALL a new driver seat backrest motor. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to H14.
H14 CHECK CIRCUIT 32-AH36 (WH/RD) FOR OPEN AND SHORT TO GROUND Disconnect: Driver Seat Control Switch C360. Measure the resistance between driver seat control switch C360-12, circuit 32-AH36 (WH/RD), harness side and driver seat backrest motor C368-1, circuit 32-AH36 (WH/RD), harness side; and between driver seat control switch C360-12, circuit 32-AH36 (WH/RD), harness side and ground. Is the resistance less than 5 ohms between the driver seat backrest motor and the driver seat control switch, and greater than 10,000 ohms between the driver seat control switch and ground? Yes : GO to H15. No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
H15 CHECK CIRCUIT 33-AH36 (YE/RD) FOR OPEN Measure the resistance between driver seat control switch C360-7, circuit 33-AH36 (YE/RD) harness side, and driver seat backrest motor C368-2, circuit 33-AH36 (YE/RD), harness side; and between driver seat control switch C360-7, circuit 33-AH36 (YE/RD), harness side and ground. Is the resistance less than 5 ohms between the driver seat backrest motor and the driver seat control switch, and greater than 10,000 ohms between the seat control switch and ground? Yes : INSTALL a new driver seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

A memory seat that does not move horizontally/vertically can be caused by

a fuse.
wiring, terminals, or connectors.
a faulty memory set switch.
a faulty power seat track motor position sensor.
a faulty DSM.

Scheme 89

Scheme 89: PINPOINT TEST I: THE MEMORY SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - DRIVER

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I1 RETRIEVE THE RECORDED DSM DTCS FROM BOTH CONTINUOUS AND ON-DEMAND SELF-TESTS WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Driver Seat Side Air Bag Module C316. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Driver Seat Side Air Bag Module C316. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Use the results recorded from the DSM continuous and on-demand self-tests. Are any DSM DTCs recorded? Yes : If DTCB1703, B1707, B1711, B1715, B1719, B1723, B1727 or B1731 was retrieved, GO to I2. If any combination of DTC B1757, B1761, B1765, B1769, B2146, B2149, B2152, or B2155 are retrieved, GO to I4 . If only a combination of DTC B2146, B2149, B2152or B2155 are retrieved, GO to I43 . No : GO to I45 .
I2 CHECK FOR A SHORT TO BATTERY Disconnect: DSM C341c. Key in ON position. Using the following table, measure the voltage between DSM C341c pins, harness side and ground. PINS CIRCUIT REFERENCE DSM C341c Pin Circuit 3 10-AH83 (GY/OG) 4 10-AH82 (GY/RD) 5 8-AH84 (WH/BK) 6 10-AH85 (GY/WH) 11 8-AH83 (WH/GN) 12 8-AH82 (WH/RD) 13 10-AH84(GY/BK) 14 8-AH85 (WH/VT) Are any of the voltages greater than 10 volts? Yes : GO to I3. No : CLEAR the DSM DTCs. REPEAT the DSM self-test. If DTC B1703, B1707, B1711, B1715, B1719, B1723, B1727 or B1731 is retrieved, INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . If any other DTCs are retrieved, refer to the «DSM DIAGNOSTIC TROUBLE CODE (DTC) INDEX»(ref-207572-S18389247182005113000000) .
I3 CHECK THE DRIVER SEAT CONTROL SWITCH FOR A SHORT TO BATTERY Key in OFF position. Disconnect: Driver Seat Control Switch C360. Key in ON position. Using the following table, measure the voltage between DSM C341c pins, harness side and ground. PINS CIRCUIT REFERENCE DSM C341c Pin Circuit 3 10-AH83 (GY/OG) 4 10-AH82 (GY/RD) 5 8-AH84 (WH/BK) 6 10-AH85 (GY/WH) 11 8-AH83 (WH/GN) 12 8-AH82 (WH/RD) 13 10-AH84 (GY/BK) 14 8-AH85 (WH/VT) Are any of the voltages greater than 10 volts? Yes : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the DSM self-test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : INSTALL a new driver seat control switch. CLEAR the DTCs. REPEAT the DSM self-test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I4 CHECK FOR MULTIPLE DSM DTCS Use the results recorded from the DSM continuous and on-demand self-tests. Are the DSM DTCs B1757, B1761 and B1765 all retrieved? Yes : GO to I5. No : GO to I10 .
I5 CHECK THE HORIZONTAL POSITION SENSOR COMMON RETURN Key in OFF position. Disconnect: Horizontal Position Sensor C372. Measure the resistance between horizontal position sensor C372-3, circuit 9-AH26 (BN/RD), harness side and ground. Is the resistance less than 180 ohms? Yes : GO to I7 . No : GO to I6.
I6 CHECK CIRCUIT 9-AH26 (BN/RD) FOR AN OPEN Disconnect: DSM C341a. Measure the resistance between horizontal position sensor C372-3, circuit 9-AH26 (BN/RD), harness side and DSM C341 a-11, circuit 9-AH80 (BN/WH), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I7 CHECK THE POSITION SENSOR COMMON FEED Measure the voltage between horizontal position sensor C372-1, circuit 7-AH26 (YE/RD), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to I10 . No : GO to I8.
I8 CHECK CIRCUIT 7 -AH26 (YE/RD) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between horizontal position sensor C372-1, circuit 7-AH26 (YE/RD), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to I9. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I9 CHECK CIRCUIT 7 -AH26 (YE/RD) OR 7-AH80 (YE/VT) FOR AN OPEN Measure the resistance between horizontal position sensor C372-1, circuit 7-AH26 (YE/RD), harness side and DSM C341a-15, circuit 7-AH80 (YE/VT), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I10 CHECK FOR SINGLE DTCS Key in OFF position. Use the recorded results from the DSM self-test. Was DTC B1757, B1761, B1765 or B1769 retrieved? Yes : For DTC B1757 Go to I11. For DTC B1761 GO to I19 . For DTC B1765 GO to I27 . For DTC B1769 GO to I35 . No : GO to I43 .
I11 CHECK VOLTAGE TO THE DRIVER SEAT REAR HEIGHT MOTOR Disconnect: Driver Seat Rear Height Motor C363. Measure the voltage between driver seat rear height motor C363-1, circuit 33-AH41 (YE/VT), harness side and driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side. Operate the driver seat control switch to the rear up and rear down position. Is the voltage greater than 10 volts in both directions? Yes : GO to I15 . No : GO to I12.
I12 CHECK THE DSM DRIVER SIDE REAR HEIGHT MOTOR CONTROL Measure the voltage between driver seat rear height motor C363-1, circuit 33-AH41 (YE/VT), harness side and ground while operating the driver seat control switch to the rear down position; and between driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side and ground while operating the driver seat control switch to the rear up position. Is the voltage greater than 10 volts in both directions? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I13.
I13 CHECK CIRCUIT 33-AH41 (YE/VT) AND 32-AH41 (WH/VT) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between driver seat rear height motor C363-1, circuit 33-AH41 (YE/VT), harness side and ground; and between driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side and ground. Are the resistances greater than 10,000 ohms? Yes : GO to I14. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I14 CHECK CIRCUIT 33-AH41 (YE/VT) AND 32-AH41 (WH/VT) FOR AN OPEN Measure the resistance between driver seat rear height motor C363-1, circuit 33-AH41 (YE/VT), harness side and DSM C341a-8, circuit 33-AH41 (YE/VT), harness side; and between driver seat rear height motor C363-2, circuit 32-AH41 (WH/VT), harness side and DSM C341a-16, circuit 32-AH41 (WH/VT), harness side. Are the resistances less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the DSM self-test. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I15 CHECK CIRCUIT 9-AH25 (BN/GN) FOR AN OPEN Disconnect: Rear Height Motor Position Sensor C373. Measure the resistance between rear height motor position sensor C373-3, circuit 9-AH25 (BN/GN), harness side and ground. Is the resistance less than 5 ohms? Yes : GO to I16. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I16 CHECK CIRCUIT 7-AH25 (YE/GN) FOR AN OPEN Measure the voltage between rear height motor position sensor C373-1, circuit 7-AH25 (YE/GN), harness side and ground. Is the voltage approximately 5 volts? Yes : GO to I17. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I17 CHECK CIRCUIT 8-AH25 (WH/GN) FOR A SHORT TO GROUND Key in OFF position. Disconnect: DSM C341a. Measure the resistance between rear height motor position sensor C373-2, circuit 8-AH25 (WH/GN), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to I18. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I18 CHECK CIRCUIT 8-AH25 (WH/GN) FOR AN OPEN Measure the resistance between rear height motor position sensor C373-2, circuit 8-AH25 (WH/GN), harness side and DSM C341a-14, circuit 8-AH25 (WH/GN), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new seat track. CALIBRATE the driver seat. REFER to Principles of Operation. REPEAT the DSM self-test. If DTCB1757is retrieved, INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I19 CHECK THE DRIVER SEAT FRONT HEIGHT MOTOR SUPPLY Disconnect: Driver Seat Front Height Motor C382. Measure the voltage between driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side and driver seat front height motor C382-1, circuit 32-AH38 (WH/BK), harness side. Operate the driver seat control switch to the front up and front down position. Is the voltage greater than 10 volts in both directions? Yes : GO to I23 . No : GO to I20.
I20 CHECK THE DSM DRIVER SEAT FRONT HEIGHT MOTOR CONTROL Measure the voltage between driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side and ground while operating the driver seat control switch to the front down position; and between driver seat front height motor C382-1, circuit 32-AH38 (WH/BK), harness side and ground, while operating the driver seat control switch to the front up position. Is the voltage greater than 10 volts in both directions? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I21.
I21 CHECK CIRCUIT 33-AH38 (YE/BK) AND 32-AH38 (WH/BK) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side and ground; and between driver seat front height motor C382-1, circuit 32-AH38 (WH/BK), harness side and ground. Are the resistances greater than 10,000 ohms? Yes : GO to I22. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I22 CHECK CIRCUIT 33-AH38 (YE/BK) AND 32-AH38 (WH/BK) FOR AN OPEN Measure the resistance between driver seat front height motor C382-2, circuit 33-AH38 (YE/BK), harness side and DSM C341a-7, circuit 33-AH38 (YE/BK), harness side; and between driver seat front height motor C382-1, circuit 32-AH38 (WH/BK), harness side and DSM C341a-17, circuit 32-AH38 (WH/BK), harness side. Are the resistances less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I23 CHECK CIRCUIT 9-AH24 (BN/YE) FOR AN OPEN Disconnect: Front Height Motor Position Sensor C383. Measure the resistance between front height motor position sensor C383-1, circuit 9-AH24 (BN/YE), harness side and ground. Is the resistance less than 5 ohms? Yes GO to I24. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I24 CHECK CIRCUIT 7-AH24 (YE/BK) FOR AN OPEN Measure the voltage between front height motor position sensor C383-3, circuit 7-AH24 (YE/BK), harness side and ground. Is the voltage approximately 5 volts? Yes : GO to I25. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I25 CHECK CIRCUIT 8-AH24 (WH/BK) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between front height motor position sensor C383-2, circuit 8-AH24 (WH/BK), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to I26. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I26 CHECK CIRCUIT 8-AH24 (WH/BK) FOR AN OPEN Measure the resistance between front height motor position sensor C383-2, circuit 8-AH24 (WH/BK), harness side and DSM C341a-5, circuit 8-AH24 (WH/BK), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new seat track. CALIBRATE the driver seat. REFER to Principles of Operation. REPEAT the self test. If DTC B1761 is retrieved, INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I27 CHECK THE VOLTAGE TO THE DRIVER SEAT FORWARD/REARWARD MOTOR Disconnect: Driver Seat Forward/Rearward Motor C362. Measure the voltage between driver side forward/rearward motor C362-1, circuit 33-AH37 (YE/GN), harness side and driver side forward/rearward motor C362-2, circuit 32-AH37 (WH/GN), harness side. Operate the driver seat control switch to the forward and rearward position. Is the voltage greater than 10 volts in both directions? Yes : GO to I31 . No : GO to I28.
I28 CHECK THE DSM FORWARD/REARWARD MOTOR CONTROL Measure the voltage between driver side forward/rearward motor C362-1, circuit 33-AH37 (YE/GN), harness side and ground while operating the driver seat control switch to the rearward position; and between driver side forward/rearward motor C362-2, circuit 32-AH37 (WH/GN), harness side and ground while operating the driver seat control switch to the forward position. Is the voltage greater than 10 volts in both directions? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I29.
I29 CHECK CIRCUIT 33-AH37 (WH/GN) AND 32-AH37 (YE/GN) FOR A SHORT TO GROUND Disconnect: DSM C341. Measure the resistance between driver side forward/rearward motor C362-1, circuit 33-AH37 (YE/GN), harness side and ground; and between driver side forward/rearward motor C362-2, circuit 32-AH37 (WH/GN), harness side and ground. Are the resistances greater than 10,000 ohms? Yes : GO to I30. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I30 CHECK CIRCUIT 33-AH37 (YE/GN) AND 32-AH37 (WH/GN) FOR AN OPEN Measure the resistance between driver side forward/rearward motor C362-1, circuit 33-AH37 (YE/GN), harness side and DSM C341a-1, circuit 33-AH37 (YE/GN), harness side; and between driver side forward/rearward motor C362-2, circuit 32-AH37 (WH/GN), harness side and DSM C341a-10, circuit 32-AH9 (WH/GN), harness side. Are the resistances less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I31 CHECK CIRCUIT 9-AH26 (BN/RD) FOR AN OPEN Disconnect: Forward/Rearward Motor Position Sensor C372. Measure the resistance between forward/rearward motor position sensor C372-3, circuit 9-AH26 (BN/RD), harness side and ground. Is the resistance less than 5 ohms? Yes : GO to I32. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I32 CHECK CIRCUIT 7-AH26 (YE/RD) FOR AN OPEN Measure the voltage between forward/rearward motor position sensor C372-1, circuit 7-AH26 (YE/RD), harness side and ground. Is the voltage approximately 5 volts? Yes : GO to I33. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the DSM self-test. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I33 CHECK CIRCUIT 8-AH26 (WH/RD) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between forward/rearward motor position sensor C372-2, circuit 8-AH26 (WH/RD), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to I34. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I34 CHECK CIRCUIT 8-AH26 (WH/RD) FOR AN OPEN Measure the resistance between forward/rearward motor position sensor C372-2, circuit 8-AH26 (WH/RD), harness side and DSM C341a-4, circuit 8-AH26 (WH/RD), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new seat track. CALIBRATE the driver seat. REFER to Principles of Operation. REPEAT the DSM self-test. If DTC B1765is retrieved, INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I35 CHECK THE DRIVER SEAT BACKREST MOTOR SUPPLY Disconnect: Driver Seat Backrest Motor C368. Measure the voltage between driver seat backrest motor C368-2, circuit 33-AH36 (YE/RD), harness side and driver seat backrest motor C368-1, circuit 32-AH36 (WH/RD), harness side, while operating the driver seat control switch to the recline forward and recline rearward position. Is the voltage greater than 10 volts in both directions? Yes : GO to I39 . No : GO to I36.
I36 CHECK THE DSM BACKREST MOTOR CONTROL Measure the voltage between driver seat backrest motor C368-2, circuit 33-AH36 (YE/RD), harness side and ground while operating the driver seat control switch to the backrest forward position; and between driver seat backrest motor C368-1, circuit 32-AH36 (WH/RD), harness side and ground while operating the driver seat control switch to the backrest rearward position. Is the voltage greater than 10 volts in both directions? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I37.
I37 CHECK CIRCUIT 33-AH36 (YE/RD) AND 32-AH36 (WH/RD) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between driver seat backrest motor C368-2, circuit 33-AH36 (YE/RD), harness side and ground; and between driver seat backrest motor C368-1, circuit 32-AH34 (WH/RD), harness side and ground. Are the resistances greater than 10,000 ohms? Yes : GO to I38. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I38 CHECK CIRCUIT 33-AH36 (YE/RD) AND 32-AH36 (WH/RD) FOR AN OPEN Measure the resistance between driver seat backrest motor C368-2, circuit 33-AH36 (YE/RD), harness side and DSM C341a-9, circuit 33-AH36 (YE/RD), harness side; and between driver seat backrest motor C368-1, circuit 32-AH36 (WH/RD), harness side and DSM C341a-2, circuit 32-AH36 (WH/RD), harness side. Are the resistances less than 5 ohms? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I39 CHECK CIRCUIT 9-AH30 (BN/BU) FOR AN OPEN Disconnect: Backrest Motor Position Sensor C376. Measure the resistance between backrest motor position sensor C376-3, circuit 9-AH30 (BN/BU), harness side and ground. Is the resistance less than 5 ohms? Yes : GO to I40. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I40 CHECK CIRCUIT 7-AH30 (YE/BU) FOR AN OPEN Measure the voltage between backrest motor position sensor C376-1, circuit 7-AH30 (YE/BU), harness side and ground. Is the voltage approximately 5 volts? Yes : GO to I41. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I41 CHECK CIRCUIT 8-AH30 (WH/BU) FOR A SHORT TO GROUND Disconnect: DSM C341a. Measure the resistance between backrest motor position sensor C376-2, circuit 8-AH30 (WH/BU), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to I42. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I42 CHECK CIRCUIT 8-AH30 (WH/BU) FOR AN OPEN Measure the resistance between backrest motor position sensor C376-2, circuit 8-AH30 (WH/BU), harness side and DSM C341a-13, circuit 8-AH30 (WH/BU), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new seat backrest frame assembly. CALIBRATE the driver seat. REFER to Principles of Operation. REPEAT the DSM self-test. If DTC B1769 is retrieved, INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I43 CHECK FOR HESITATION OR JOGGING Key in ON position. Enter the following diagnostic mode on the diagnostic tool: Clear all DSM DTCs. Enter the following diagnostic mode on the diagnostic tool: Clear all DSM DTCs. Enter the following diagnostic mode on the diagnostic tool: Operate the driver seat control switch through all positions while monitoring DSM PIDs SFNT_MT, SREARMT, SFWD_MT and SRCL_MT, and watching seat movement. Did the driver seat stop or hesitate, or did any of the DSM PIDs read inconsistently? Yes : INSTALL a new seat track. CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I44.
I44 CHECK FOR AN INTERMITTENT CONCERN Enter the following diagnostic mode on the diagnostic tool: Clear all DSM DTCs. Operate the driver power seat. Wiggle the harness and connectors. Inspect for any visual concerns. Enter the following diagnostic mode on the diagnostic tool: DSM Self-Test. Were any DTCs retrieved? Yes : If DTC B2146, B2149, B2152 or B2155 is retrieved, INSTALL a new seat track. CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : CALIBRATE the driver seat. REFER to Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I45 CHECK THE DRIVER SEAT CONTROL SWITCH PIDS Enter the following diagnostic mode on the diagnostic tool: Operate the driver seat control seat switch through all positions while monitoring the DSM PIDs SFNT_SW, SFWD_SW, SREARSW and SRCL_SW. Do the DSM PIDs accurately represent the seat control switch positions? Yes : INSTALL a new DSM. REFER to «MODULE COMMUNICATIONS NETWORK - LS»(ref-207567) . CALIBRATE the driver seat, REFER to «SEAT CALIBRATION»(ref-207572-S02319045902005113000000) in Principles of Operation. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. TURN the ignition OFF. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : GO to I46.
I46 CHECK THE DRIVER SEAT CONTROL SWITCH CIRCUITS FOR AN OPEN Key in OFF position. Disconnect: DSM C341c. Using the following table, measure the resistance between DSM C341c pins, harness side and ground. PINS CIRCUIT REFERENCE DSM C341c Pin Circuit 3 10-AH83 (GY/OG) 4 10-AH82 (GY/RD) 5 8-AH84 (WH/BK) 6 10-AH85 (GY/WH) 11 8-AH83 (WH/GN) 12 8-AH82 (WH/RD) 13 10-AH84 (GY/BK) 14 8-AH85 (WH/VT) Are the resistances less than 5 ohms? Yes : GO to I47. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
I47 CHECK THE DRIVER SEAT CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND Disconnect: Driver Seat Control Switch C360. Using the following table, measure the resistance between DSM C341c pins, harness side and ground. PINS CIRCUIT REFERENCE DSM C341c Pin Circuit 3 10-AH83 (GY/OG) 4 10-AH82 (GY/RD) 5 8-AH84 (WH/BK) 6 10-AH85 (GY/WH) 11 8-AH83 (WH/GN) 12 8-AH82 (WH/RD) 13 10-AH84 (GY/BK) 14 8-AH85 (WH/VT) Are the resistances greater than 10,000 ohms? Yes : INSTALL a new driver seat control switch. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C316. CONNECT driver seat side air bag module C316. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

A power seat that does not move horizontally and/or vertically can be caused by

wiring, terminals, or connectors.
a faulty seat control switch.
a faulty seat track motor.

Scheme 130

Scheme 130: PINPOINT TEST J: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - PASSENGER

Scheme 131

Scheme 132

J1 CHECK THE PASSENGER SEAT MOTOR OPERATION WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards. NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the air bag system must be depowered. Refer to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer. Key in OFF position. Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . Disconnect: Passenger Seat Side Air Bag Module C314. Connect: Restraint System Diagnostic Tool 418-133 or 501-097 to Passenger Seat Side Air Bag Module C314. Connect: Battery Ground Cable. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected. Disconnect the passenger seat motor connector in question: (forward/rearward motor C332, seat height motor C333, or seat backrest motor C338). Using the following table, measure the voltage between the inoperative passenger seat motor connector, harness side and ground, while moving the seat control switch in the indicated direction: CONNECTOR PINS CIRCUIT REFERENCE Motor Connector Pin Circuit Direction of Control Switch Forward/Reverse Motor C332 2 32-AH44 (WH/GN) Forward Forward/Reverse Motor C332 1 33-AH44 Reverse (YE/GN) Height Motor C333 1 32-AH34 (WH/BK) Up Height Motor C333 2 33-AH34 (YE/BK) Down Backrest Motor C338 1 32-AH43 (WH/RD) Tilt Up Backrest Motor C338 2 33-AH43 (YE/RD) Tilt Down Are the voltages greater than 10 volts in the inoperative directions? Yes : INSTALL a new passenger seat track or the backrest frame assembly. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .. No : GO to J2.
J2 CHECK THE PASSENGER SEAT MOTOR CIRCUITS FOR A SHORT TO GROUND Disconnect: Passenger Seat Control Switch C330. Using the following table, measure the resistance between passenger seat control switch C330 pins, harness side and ground: PINS CIRCUIT REFERENCE Pin Circuit Inoperative Motor 12 32-AH43 (WH/RD) Backrest 7 33-AH43 (YE/RD) Backrest 4 32-AH34 (WH/BK) Height 5 33-AH34 (YE/BK) Height 3 32-AH44 (WH/GN) Forward/ Rearward 11 33-AH44 (YE/GN) Forward/ Rearward Are the resistances greater than 10,000 ohms? Yes : GO to J3. No : REPAIR the circuit in question. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .
J3 CHECK FOR AN OPEN CIRCUIT Key in OFF position. Measure the resistance between the passenger seat control switch C330 pins, harness side and the inoperative motor connector, harness side: PINS CIRCUIT REFERENCE C330 Pin Circuit Motor Connector Height Motor 4 32-AH34 (WH/BK) C333-1 5 33-AH34 (YE/BK) C333-2 Forward/Reverse Motor 3 32-AH44 (WH/GN) C332-2 11 33-AH44 (YE/GN) C332-1 Backrest Motor 12 32-AH43 (WH/RD) C338-1 7 33-AH43 (YE/RD) C338-2 Are all resistance readings less than 5 ohms? Yes : INSTALL a new passenger seat control switch. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) . No : REPAIR the circuit in question. TEST the system for normal operation. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C314. CONNECT passenger seat side air bag module C314. REPOWER the supplemental restraint system (SRS). REFER to «AIR BAG RESTRAINT SYSTEMS»(ref-170294) .

An inoperative memory seat can be caused by

a fuse.
wiring, terminals, or connectors.
a faulty seat control switch.
a faulty power seat track motor.
a faulty DSM.

An inoperative heated seat can be caused by

wiring, terminals, or connectors.
a faulty heated seat switch.
a faulty heated seat module.
a faulty heated seat element.
a faulty heated seat temperature sensor.

Scheme 133

Scheme 133: PINPOINT TEST L: THE LEFT REAR HEATED SEAT IS INOPERATIVE

Scheme 134

Scheme 135

Possible Causes — Part 1 Lincoln LS I рестайлинг