Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Power Seat Inoperative (with Memory)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Attempt to operate all of the seat adjuster motors through their full range of adjustment. Do all of the seat adjuster motors operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Seat Adjuster Switch parameters in the seat module Inputs/Outputs data list. Operate the seat adjuster switches in both directions. Does the scan tool display the correct Switch Status parameters in relation to the actual switch positions? | Go to Step 5 | Go to Step 4 |
| 4 | Disconnect the seat adjuster switch connector. Using a DMM test for battery voltage at the switch supply voltage circuit terminal in the harness connector. Is battery voltage present on the switch supply voltage circuit? | Go to Step 8 | Go to Step 6 |
| 5 | Disconnect the seat module connector C1. Connect a test lamp from the high current battery voltage supply circuit terminal in the harness connector to ground. Does the test lamp illuminate? | Go to Step 9 | Go to Step 7 |
| 6 | Test the battery voltage supply circuit to the power seat switch for open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 9 |
| 7 | Repair the high current battery voltage supply circuit to the seat module for open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 12 | |
| 8 | Inspect for poor connections at the harness connector of the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 10 |
| 9 | Inspect for poor connections at the harness connectors of the memory seat module (MSM). Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 11 |
| 10 | Replace the power seat switch. Refer to Seat Switch Replacement - Power . Is the repair complete? | Go to Step 12 | |
| 11 | Replace the memory seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 12 | |
| 12 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Inoperative (with Memory)
Power Seat Inoperative (w/o Memory)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics , Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views DEFINITION: One or more of the power seat functions are inoperative. | |||
| 1 | Did you review the Power Seat System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Attempt to operate all of the power seat adjuster motors through their full range of adjustment. Do all of the power seat adjuster motors operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Are all the power seat adjuster motors inoperative? | Go to Step 4 | Go to Step 6 |
| 4 | Disconnect the power seat switch connector. Connect a test lamp from the battery voltage supply circuit terminal in the harness connector to a good ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
| 5 | Connect a test lamp from the battery voltage supply circuit terminal to the ground circuit terminal in the power seat switch harness connector. Does the test lamp illuminate? | Go to Step 10 | Go to Step 9 |
| 6 | Disconnect the inoperative adjuster motor connector. Connect a test lamp across the motor control circuit terminals in the harness connector. Operate the appropriate adjuster switch in both directions. Does the test lamp illuminate while the switch is operated in both directions? | Go to Step 11 | Go to Step 7 |
| 7 | Disconnect the power seat switch connector. Test the inoperative motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 10 |
| 8 | Repair the battery voltage supply circuit to the power seat switch for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | |
| 9 | Repair the power seat switch ground circuit for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 14 | |
| 10 | Inspect for poor connections at the power seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12 |
| 11 | Inspect for poor connections at the inoperative adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13 |
| 12 | Replace the power seat switch. Refer to Seat Switch Replacement - Power or to Lumbar Switch Replacement - Front . Is the repair complete? | Go to Step 14 | |
| 13 | Replace the inoperative seat adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power or to Lumbar Replacement - Front Seat . Is the repair complete? | Go to Step 14 | |
| 14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Power Seat Inoperative (w/o Memory)
Power Seat Does Not Move Forward/Rearward
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Operate the horizontal adjuster switch in the forward and rearward directions. Does the horizontal adjuster motor operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Horizontal Position Switch parameter in the seat module Inputs/Outputs data list. Operate the horizontal adjuster switch in the forward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 4 | Go to Step 5 |
| 4 | Operate the horizontal adjuster switch in the rearward direction. Does the scan tool display the correct Switch Status parameter in relation to the actual switch position? | Go to Step 7 | Go to Step 6 |
| 5 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and the horizontal forward switch signal circuit terminal in the harness connector. Observe the Horizontal Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Horizontal switch status parameter as forward? | Go to Step 12 | Go to Step 8 |
| 6 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and the horizontal rearward switch signal circuit terminal in the harness connector. Observe the Horizontal Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Horizontal switch status parameter as rearward? | Go to Step 12 | Go to Step 9 |
| 7 | Disconnect the horizontal adjuster motor control circuit connector. Connect a test lamp between the control circuit terminals in the harness connector. Operate the horizontal adjuster switch in both directions. Does the test lamp illuminate in the forward and backward switch positions only? | Go to Step 11 | Go to Step 10 |
| 8 | Test the horizontal forward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 9 | Test the horizontal rearward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 10 | Test the horizontal adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 11 | Inspect for poor connections at the horizontal adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
| 12 | Inspect for poor connections at the seat adjuster switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in the Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
| 13 | Inspect for poor connections at the seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in the Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
| 14 | Replace the horizontal adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 15 | Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 16 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 17 | |
| 17 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Does Not Move Forward/Rearward
Power Seat Does Not Tilt Forward
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Operate the front vertical adjuster switch in the upward and downward directions. Does the front vertical adjuster motor operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Front Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Operate the front vertical adjuster switch in the upward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 4 | Go to Step 5 |
| 4 | Operate the front vertical adjuster switch in the downward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 7 | Go to Step 6 |
| 5 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and the front vertical upward switch signal circuit terminal in the harness connector. Observe the Front Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Front Vertical Position Switch parameter as upward? | Go to Step 12 | Go to Step 8 |
| 6 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and the front vertical downward switch signal circuit terminal in the harness connector. Observe the Front Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Front Vertical Position Switch parameter as downward? | Go to Step 12 | Go to Step 9 |
| 7 | Disconnect the front vertical adjuster motor control circuit connector. Connect a test lamp between the control circuit terminals in the harness connector. Operate the front vertical adjuster switch in both directions. Does the test lamp illuminate in the upward and downward switch positions only? | Go to Step 11 | Go to Step 10 |
| 8 | Test the front vertical upward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 9 | Test the front vertical downward switch signal circuit for open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 10 | Test the front vertical adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 11 | Inspect for poor connections at the front vertical adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
| 12 | Inspect for poor connections at the seat adjuster switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
| 13 | Inspect for poor connections at the seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
| 14 | Replace the front vertical adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 15 | Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 16 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 17 | |
| 17 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Does Not Tilt Forward
Power Seat Does Not Tilt Rearward
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Operate the rear vertical adjuster switch in the upward and downward directions. Does the rear vertical adjuster motor operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Rear Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Operate the rear vertical adjuster switch in the upward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 4 | Go to Step 5 |
| 4 | Operate the rear vertical adjuster switch in the downward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 7 | Go to Step 6 |
| 5 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and rear vertical upward switch signal circuit terminal in the harness connector. Observe the Rear Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Rear Vertical Position Switch parameter as upward? | Go to Step 12 | Go to Step 8 |
| 6 | Disconnect the seat adjuster switch connector. Connect a 3-amp fused jumper wire between the battery voltage supply circuit terminal and rear vertical downward switch signal circuit terminal in the harness connector. Observe the Rear Vertical Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Rear Vertical Position Switch parameter as downward? | Go to Step 12 | Go to Step 9 |
| 7 | Disconnect the rear vertical adjuster motor control circuit connector. Connect a test lamp between the control circuit terminals in the harness connector. Operate the rear vertical adjuster switch in both directions. Does the test lamp illuminate in the upward and downward switch positions only? | Go to Step 11 | Go to Step 10 |
| 8 | Test the rear vertical upward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 9 | Test the rear vertical downward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 10 | Test the rear vertical adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 11 | Inspect the poor connections at the rear vertical adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
| 12 | Inspect for poor connections at the seat adjuster switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
| 13 | Inspect for poor connections at seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
| 14 | Replace the rear vertical adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 15 | Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 16 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 17 | |
| 17 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Does Not Tilt Rearward
Power Seat Does Not Recline
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Operate the recline adjuster switch in forward and rearward directions. Does the recline adjuster motor operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Recline Position Switch parameter in the seat module Inputs/Outputs data list. Operate the recline adjuster switch in the forward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 4 | Go to Step 5 |
| 4 | Operate the recline adjuster switch in the rearward direction. Does the scan tool display the correct switch status parameter in relation to the actual switch position? | Go to Step 7 | Go to Step 6 |
| 5 | Disconnect the seat adjuster switch connector. Connect a 3-amp fuse jumper wire between the battery voltage supply circuit terminal and the recline forward switch signal circuit terminal in the harness connector. Observe the Recline Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Recline Position Switch parameter as forward? | Go to Step 12 | Go to Step 8 |
| 6 | Disconnect the seat adjuster switch connector. Connect a 3-amp fuse jumper wire between the battery voltage supply circuit terminal and the recline rearward switch signal circuit terminal in the harness connector. Observe the Recline Position Switch parameter in the seat module Inputs/Outputs data list. Does the scan tool display the Recline Position Switch parameter as rearward? | Go to Step 12 | Go to Step 9 |
| 7 | Disconnect the recline adjuster motor control circuit connector. Connect a test lamp between the control circuit terminals in the harness connector. Operate the recline adjuster switch in both directions. Does the test lamp illuminate in the forward and rearward switch positions only? | Go to Step 11 | Go to Step 10 |
| 8 | Test the recline forward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 9 | Test the recline rearward switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 10 | Test the recline adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13 |
| 11 | Inspect for poor connections at the recline adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
| 12 | Inspect for poor connections at the seat adjuster switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
| 13 | Inspect for poor connections at the seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
| 14 | Replace the recline adjuster motor. Refer to Seat Adjuster Mechanism Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 15 | Replace the seat adjuster switch. Refer to Seat Switch Replacement - Power . Is the repair complete? | Go to Step 17 | |
| 16 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 17 | |
| 17 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Power Seat Does Not Recline
Memory Seat Feature Inoperative
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views DEFINITION: One or more of the memory recall functions are inoperative. | ||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | |
| 2 | Attempt to set and recall memory 1, memory 2, and exit seat position settings. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | |
| 3 | Install a scan tool. Observe the Memory Switch parameter in the driver door module (DDM) Inputs data list. Press the memory 1 switch. Does the scan tool indicate the memory 1 switch is active only while the switch is pressed? | Go to Step 4 | Go to Step 6 | |
| 4 | Observe the Memory Switch parameter in the DDM Inputs data list. Press the memory 2 switch. Does the scan tool indicate the memory 2 switch is active only while the switch is pressed? | Go to Step 5 | Go to Step 7 | |
| 5 | Observe the Memory Switch parameter in the DDM Inputs data list. Press the exit switch. Does the scan tool indicate the exit switch is active only while the switch is pressed? | Go to Step 12 | Go to Step 8 | |
| 6 | Disconnect the memory seat switch connector from the DDM. Using a DMM, test the resistance through the memory switch from the voltage supply circuit terminal to the memory 1 switch signal circuit terminal in the pigtail connector. Refer to Circuit Testing in Wiring Systems. Press the memory 1 switch. Is the resistance less than the specified value only while the switch is pressed? | 0.5 ohms | Go to Step 13 | Go to Step 11 |
| 7 | Disconnect the memory seat switch connector from the DDM. Using a DMM, test the resistance through the memory switch from the voltage supply circuit terminal to the memory 2 switch signal circuit terminal in the pigtail connector. Refer to Circuit Testing in Wiring Systems. Press the memory 2 switch. Is the resistance less than the specified value only while the switch is pressed? | 0.5 ohms | Go to Step 13 | Go to Step 11 |
| 8 | Disconnect the memory seat switch connector from the DDM. Using a DMM, test the resistance through the memory switch from the voltage supply circuit terminal to the memory 1 switch signal circuit terminal in the pigtail connector. Refer to Circuit Testing in Wiring Systems. Press the exit switch. Is the resistance less than the specified value only while the switch is pressed? | 0.5 ohms | Go to Step 9 | Go to Step 11 |
| 9 | Using a DMM, test the resistance through the memory switch from the voltage supply circuit terminal to the memory 2 switch signal circuit terminal in the pigtail connector. Refer to Circuit Testing in Wiring Systems. Press the exit switch. Is the resistance less than the specified value only while the switch is pressed? | 0.5 ohms | Go to Step 10 | Go to Step 11 |
| 10 | Test the memory switch signal circuits in the switch harness for a short to ground or voltage. Refer to Circuit Testing in Wiring Systems. Are either of the switch signal circuits shorted to ground or voltage? | Go to Step 14 | Go to Step 13 | |
| 11 | Inspect for poor connections at the memory switch connector. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 | |
| 12 | Inspect for poor connections at the driver seat module (DSM). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 | |
| 13 | Inspect for poor connections at the DDM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 | |
| 14 | Replace the memory switch. Refer to Memory Seat Switch Replacement . Did you complete the replacement? | Go to Step 17 | ||
| 15 | Replace the DSM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 17 | ||
| 16 | Replace the DDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 17 | ||
| 17 | Operate the memory seat system to verify the repair. Did you correct the condition? | System OK | Go to Step 2 | |
Memory Seat Feature Inoperative
Lumbar Support Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Operate the lumbar switch in all directions. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Lumbar/Bolster Switch parameter in the seat module Inputs/Outputs data list. Operate the lumbar switch in all directions. Does the scan tool display the correct switch parameter in relation to the actual switch position? | Go to Step 6 | Go to Step 4 |
| 4 | Disconnect the lumbar switch connector. Connect a test lamp from the battery voltage supply circuit terminal in the harness connector to ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 7 |
| 5 | Observe the Lumbar/Bolster Switch parameter in the seat module Inputs/Outputs data list. Connect a 3-amp fused jumper wire from the battery voltage supply circuit terminal to the inoperative switch signal circuit terminal in the lumbar switch harness connector. Does the scan tool indicate the correct switch signal circuit is active? | Go to Step 10 | Go to Step 8 |
| 6 | Disconnect the inoperative lumbar adjuster motor connector. Connect a test lamp between the adjuster motor control circuit terminals in the harness connector. Operate the appropriate lumbar switch in both directions. Does the test lamp illuminate while the switch is pressed in both directions? | Go to Step 11 | Go to Step 9 |
| 7 | Test the battery voltage supply circuit to the lumbar switch for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
| 8 | Test the inoperative lumbar switch signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
| 9 | Test the inoperative lumbar adjuster motor control circuits for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 12 |
| 10 | Inspect for poor connections at the harness connector of the lumbar switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 13 |
| 11 | Inspect for poor connections at the harness connector of the lumbar adjuster motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 14 |
| 12 | Inspect for poor connections at the harness connector of the seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 15 |
| 13 | Replace the lumbar switch. Refer to Lumbar Switch Replacement - Front . Did you complete the replacement? | Go to Step 16 | |
| 14 | Replace the inoperative lumbar adjuster motor. Refer to Lumbar Replacement - Front Seat . Did you complete the replacement? | Go to Step 16 | |
| 15 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 16 | |
| 16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Lumbar Support Inoperative
Heated Seat Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Start the engine. Attempt to operate the heated seat in all of the operating modes. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Install a scan tool. Observe the Back Only Heat Switch parameter in the door module Inputs data list. Press and release the back only heated seat switch. Does the scan tool display Active while the switch is pressed? | Go to Step 4 | Go to Step 8 |
| 4 | Observe the Heated Seat Switch parameter in the door module Inputs data list. Press and release the back and cushion heated seat switch. Does the scan tool display Active while the switch is pressed? | Go to Step 5 | Go to Step 8 |
| 5 | Display the Seat Heat Zone parameter in the seat module Inputs/Outputs data list. Operate the heated seat switches in all of the operating modes. Does the scan tool display the correct seat heat zone parameter in relation to the heated seat switch operation? | Go to Step 6 | Go to Step 9 |
| 6 | Disconnect the inoperative seat heater element connector. Connect a test lamp between the voltage supply circuit terminal and the control circuit terminal in the harness connector. Operate the appropriate heated seat switch to the high mode. Does the test lamp illuminate? | Go to Step 10 | Go to Step 7 |
| 7 | Test the seat heater element voltage supply and control circuits in the seat harness for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 9 |
| 8 | Inspect for poor connections at the harness connector of the door module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 11 |
| 9 | Inspect for poor connections at the harness connector of the seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12 |
| 10 | Inspect for poor connections at the harness connector of the inoperative seat heater element. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13 |
| 11 | Replace the door module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 14 | |
| 12 | Replace the seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 14 | |
| 13 | Replace the inoperative seat heater element. Refer to Seat Cushion Cover and Pad Replacement - Front or to Seat Back Cover and Pad Replacement - Front . Is the repair complete? | Go to Step 14 | |
| 14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Heated Seat Inoperative
Tools Required
J 36796 Clip Removal Tool
J 36796 Clip Removal Tool
Lumbar Support System Components
The lumbar support system for the driver and passenger seat consists of the following components
- Lumbar switch
- Seat lumbar motor assembly
- Driver seat module
- Seat circuit breaker
Heated Seats System Components
The heated seats system for the driver and passenger seat consists of the following components
- Driver and passenger door modules
- Driver and passenger heated seat switches
- Driver and passenger seat back heater elements
- Driver and passenger seat back heat sensors
- Driver and passenger seat cushion heater elements
- Driver seat module