Memory Seat Module (Msmd) - Electrical Diagnostics: Other Jeep Liberty II

Monitor Conditions

1. When Monitored: Continuously.

Set Conditions

1. Set Condition: When the Memory Seat Module detects the Driver Seat Switch engaged in an active position for over 50 seconds, this code will set.

Possible Causes

1. When Monitored: With the ignition on.

1. Set Condition: When the Memory Seat Module detects an open Driver Seat Switch MUX circuit this code will set.

Scheme 502

Scheme 503

Scheme 504

Scheme 505

Scheme 506

Scheme 507

Scheme 508

Scheme 509

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Press the Driver Seat Switch in all directions several times. Wait one minute. With the scan tool, read DTC's. Does the scan tool display active: B1D63-POWER SEAT SWITCH OPEN? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. (P309) DRIVER SEAT HORIZONTAL/REAR RISER SWITCH MUX CIRCUIT OPEN Turn the ignition off. Disconnect the Driver Seat Switch. Disconnect the Memory Seat Module C3 harness connector. Measure the resistance of the (P309) Driver Seat Horizontal/Rear Riser Switch MUX between the Driver Seat Switch harness connector and the Memory Seat Module C3 harness connector. Is the resistance below 3.0 ohms? Yes Go to step 3 No Repair the (P309) Driver Seat Horizontal/Rear Riser Switch MUX for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. (P311) DRIVER SEAT FRONT RISER SWITCH MUX CIRCUIT OPEN Measure the resistance of the (P311) Driver Seat Front Riser Switch MUX between the Driver Seat Switch harness connector and the Memory Seat Module C3 harness connector. Is the resistance below 3.0 ohms? Yes Go to step 4 No Repair the (P311) Driver Seat Front Riser Switch MUX for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
4. (P28) DRIVER SEAT SWITCH MUX RETURN CIRCUIT OPEN Measure the resistance of the (P28) Driver Seat Switch MUX Return between the Driver Seat Switch harness connector and the Memory Seat Module C3 harness connector. Is the resistance below 3.0 ohms? Yes Go to step 5 No Repair the (P28) Driver Seat Switch MUX Return circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
5. (P29) DRIVER SEAT SWITCH MUX SUPPLY CIRCUIT OPEN Measure the resistance of the (P29) Driver Seat Switch MUX Supply between the Driver Seat Switch harness connector and the Memory Seat Module C3 harness connector. Is the resistance below 3.0 ohms? Yes Go to step 6 No Repair the (P29) Driver Seat Switch MUX Supply for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
6. CHECK THE DRIVER SEAT SWITCH CIRCUIT RESISTANCES TO GROUND Measure the resistance between ground and each of the Driver Seat Switch circuits at the Driver Seat Switch harness connector. Is the resistance above 10k ohms for each circuit? Yes Go to step 7 No Repair the circuit(s) that measured below 10k ohms for a short to ground. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
7. CHECK THE MSM SENSOR SUPPLY AND SENSOR RETURN Reconnect the Memory Seat Module C3 harness connector. Turn the ignition on. Measure the voltage between the (P29) Driver Seat Switch MUX Supply circuit and the (P28) Driver Seat Switch MUX Return circuit at the Driver Seat Switch harness connector. Is the voltage above 11.0 volts? Yes Go To. 8 No Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
8. DRIVER SEAT HORIZONTAL SWITCH Turn the ignition off. Reconnect the Driver Seat Switch harness connector. Turn the ignition on. Backprobe and measure the voltage of the (P309) Driver Seat Horizontal Rear Riser Switch MUX circuit while moving the Driver Seat Switch horizontally and the rear riser up, down. NOTE: The Voltage readings for all positions should be between 1.0 volt and 5.0 volts. Is the voltage between 1.0 and 5.0 volts when the Driver Seat Switch is moved to each position? Yes Go to step 9 No Replace the Driver Seat Switch. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
9. DRIVER SEAT FRONT RISER SWITCH Backprobe and measure the voltage of the (P311) Driver Seat Front Riser MUX circuit while moving the Driver Seat Front Riser Switch forward and rearward. NOTE: The Voltage readings for all positions should be between 1.0 volt and 5.0 volts. Is the voltage between 1.0 and 5.0 volts when the Driver Seat Switch is moved to each position? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Replace the Driver Seat Switch. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

Scheme 510

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If sensor voltage is not within a specified range this DTC will set.

Scheme 511

Scheme 512

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Horizontal position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Driver Horizontal Seat Adjuster Motor harness connector. Actuate the seat switch in the affected position for the next step. Measure the voltage of the (G401) Driver Seat Horizontal Position Sense circuit at the Driver Horizontal Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Replace the Seat Track Horizontal Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 3
3. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance between ground and the (G401) Driver Seat Horizontal Position Sense circuit at the Driver Horizontal Seat Adjuster Motor harness connector. Is the resistance above 10k ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G401) Driver Seat Horizontal Position Sense circuit for a short to ground. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set.

Scheme 513

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Scheme 515

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the horizontal position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. DRIVER HORIZONTAL SEAT ADJUSTER MOTOR Turn the ignition off. Disconnect the Driver Horizontal Seat Adjuster Motor harness connector. Turn the ignition on. With the scan tool, erase all DTC's. Move the seat switch in the horizontal positions three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No Replace the Driver Horizontal Seat Adjuster Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Turn the ignition on. Measure the voltage of the (G401) Driver Seat Horizontal Position Sense circuit. Is there any voltage present? Yes Repair the (G401) Driver Seat Horizontal Position Sense circuit for a short to voltage. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 4
4. (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT Turn the ignition off. Measure the (G401) Driver Seat Horizontal Position Sense circuit to other circuits in the Memory Seat Module C2 connector. Is there any continuity present? Yes Repair the (G401) Driver Seat Horizontal Position Sense circuit for a short to another circuit. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 5
5. (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT OPEN Turn the ignition off. Measure the resistance of the (G401) Driver Seat Horizontal Position Sense circuit between the Memory Seat Module C2 harness connector and the Driver Horizontal Seat Adjuster Motor harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G401) Driver Seat Horizontal Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

Scheme 516

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If sensor voltage is not within a specified range this DTC will set.

Scheme 517

Scheme 518

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Vertical position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. CHECK THE (G404) DRIVER SEAT VERTICAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Driver Vertical Seat Adjuster Motor harness connector. Measure the voltage of the (G404) Driver Seat Vertical Position Sense circuit at the Driver Vertical Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Replace the Seat Track Vertical Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 3
3. CHECK THE (G404) DRIVER SEAT VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance between ground and the (G404) Driver Seat Vertical Position Sense circuit at the Driver Vertical Seat Adjuster Motor harness connector. Is the resistance above 10k ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G404) Driver Seat Vertical Position Sense circuit for a short to ground. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set.

Scheme 519

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Scheme 521

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Vertical position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. DRIVER VERTICAL SEAT ADJUSTER MOTOR Turn the ignition off. Disconnect the Front Driver Vertical Seat Adjuster Motor harness connector. Turn the ignition on. With the scan tool, erase all DTC's. Move the seat switch in the Front Vertical positions three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No Replace the Driver Front Vertical Seat Adjuster Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Turn the ignition on. Measure the voltage of the (G404) Driver Seat Front Vertical Position Sense circuit. Is there any voltage present? Yes Repair the (G404) Driver Seat Front Vertical Position Sense circuit for a short to voltage. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 4
4. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT Turn the ignition off. Measure the (G404) Driver Seat Front Vertical Position Sense circuit to other circuits in the Memory Seat Module C2 connector. Is there any continuity present? Yes Repair the (G404) Driver Seat Vertical Position Sense circuit for a short to another circuit. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 5
5. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT OPEN Turn the ignition off. Measure the resistance of the (G404) Driver Seat Front Vertical Position Sense circuit between the Memory Seat Module C2 harness connector and the Driver Vertical Seat Adjuster Motor harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G404) Driver Seat Front Vertical Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

Scheme 522

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If sensor voltage is not within a specified range this DTC will set.

Scheme 523

Scheme 524

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Vertical position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Rear Driver Vertical Seat Adjuster Motor harness connector. Turn the ignition on. Measure the voltage of the (G402) Driver Seat Rear Vertical Position Sense circuit at the Rear Driver Vertical Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Replace the Seat Track Vertical Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 3
3. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance between ground and the (G402) Driver Seat Rear Vertical Position Sense circuit at the Rear Driver Vertical Seat Adjuster Motor harness connector. Is the resistance above 10k ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for a short to ground. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: When the Seat Motor is activated.

1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set.

Scheme 525

Scheme 526

Scheme 527

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Vertical position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 2 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
2. REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR Turn the ignition off. Disconnect the Rear Driver Vertical Seat Adjuster Motor harness connector. Turn the ignition on. With the scan tool, erase all DTC's. Move the seat switch in the Vertical positions three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No Replace the Rear Driver Vertical Seat Adjuster Motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Turn the ignition on. Measure the voltage of the (G402) Driver Seat Rear Vertical Position Sense circuit. Is there any voltage present? Yes Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for a short to voltage. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 4
4. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT Turn the ignition off. Measure the resistance of the (G402) Driver Seat Rear Vertical Position Sense circuit to other circuits in the Memory Seat Module C2 connector. Is there any continuity present to other circuits? Yes Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for a short to another circuit. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 5
5. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT OPEN Turn the ignition off. Measure the resistance of the (G402) Driver Seat Rear Vertical Position Sense circuit between the Memory Seat Module C2 harness connector and the Rear Driver Vertical Seat Adjuster Motor harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: Whenever the Seat Motor is activated.

1. Set Condition: If the Memory Seat Module does not detect the rotation of the seat motor this DTC will set.

Scheme 528

Scheme 529

Scheme 530

Scheme 531

Scheme 532

1. CHECK FOR RELATED DIAGNOSTIC TROUBLE CODES Turn the ignition on. With the scan tool, read DTC's. Does the scan tool display any seat position sensor DTC's? Yes Diagnose and repair the other DTC(s) first. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Diagnosis and Testing»(ref-350113-S41009286612009121400000) . No Go to step 2
2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the horizontal forward and rearward position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Driver Horizontal Seat Adjuster Motor harness connector. Turn the ignition on. Measure the voltage between the (G401) Driver Seat Horizontal Position Sense circuit and the (G491) Driver Seat Horizontal Sensor Ground circuit at the Driver Horizontal Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Go to step 4 No Go to step 5
4. CHECK THE DRIVER SEAT HORIZONTAL FORWARD/REARWARD DRIVER CIRCUIT VOLTAGE Using a 12-volt test light connect one lead to the (P115) Driver Seat Horizontal Forward Driver circuit and the other lead to (P117) Driver Seat Horizontal Rearward Driver circuit at the Driver Horizontal Seat Adjuster Motor harness connector. Move the Driver Seat Switch in the Horizontal forward and rearward position. Does the test light illuminate with the seat switch engaged in both positions? Yes Replace the track/horizontal motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 7
5. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (G401) Driver Seat Horizontal Position Sense circuit between the Driver Horizontal Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 6 No Repair the (G401) Driver Seat Horizontal Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
6. CHECK THE (G491) DRIVER SEAT HORIZONTAL SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (G491) Driver Seat Horizontal Sensor Ground circuit between the Driver Horizontal Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G491) Driver Seat Horizontal Sensor Ground circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
7. CHECK THE (P115) DRIVER SEAT HORIZONTAL FORWARD DRIVER CIRCUIT FOR AN OPEN Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (P115) Driver Seat Horizontal Forward Driver circuit between the Driver Horizontal Seat Adjuster Motor harness connector to the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 8 No Repair the (P115) Driver Seat Horizontal Forward Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
8. CHECK THE (P117) DRIVER SEAT HORIZONTAL REARWARD DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P117) Driver Seat Horizontal Rearward Driver circuit between the Driver Horizontal Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (P117) Driver Seat Horizontal Rearward Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: Whenever the Seat Motor is activated.

1. Set Condition: If the Memory Seat Module does not detect the rotation of the Seat Motor this DTC will set.

Scheme 533

Scheme 534

Scheme 535

Scheme 536

Scheme 537

1. CHECK FOR RELATED DIAGNOSTIC TROUBLE CODES Turn the ignition on. With the scan tool, read DTC's. Does the scan tool display any seat position sensor DTC's? Yes Diagnose and repair the other DTC(s) first. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Diagnosis and Testing»(ref-350113-S41009286612009121400000) . No Go to step 2
2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Front Vertical up and down position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Driver Front Vertical Seat Adjuster Motor harness connector. Turn the ignition on. Measure the voltage between the (G404) Driver Seat Front Vertical Position Sense circuit and the (G494) Driver Seat Front Vertical Sensor Ground circuit at the Driver Front Vertical Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Go to step 4 No Go to step 5
4. CHECK THE DRIVER SEAT FRONT VERTICAL UP/DOWN DRIVER CIRCUIT VOLTAGE Using a 12-volt test light connect one lead to the (P119) Driver Seat Front Vertical Up Driver circuit and the other lead to (P121) Driver Seat Front Vertical Down Driver circuit at the Driver Front Vertical Seat Adjuster Motor harness connector. Move the Driver Seat Switch in the Front Vertical up and down position. Does the test light illuminate with the seat switch engaged in both positions? Yes Replace the track/Front Vertical motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 7
5. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (G404) Driver Seat Front Vertical Position Sense circuit between the Driver Front Vertical Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 6 No Repair the (G404) Driver Seat Front Vertical Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
6. CHECK THE (G494) DRIVER SEAT FRONT VERTICAL SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (G494) Driver Seat Front Vertical Sensor Ground circuit between the Driver Front Vertical Seat Adjuster Motor connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G494) Driver Seat Front Vertical Sensor Ground circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
7. CHECK THE (P119) DRIVER SEAT FRONT VERTICAL UP DRIVER CIRCUIT FOR AN OPEN Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (P119) Driver Seat Front Vertical Up Driver circuit between the Driver Front Vertical Seat Adjuster Motor harness connector to the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 8 No Repair the (P119) Driver Seat Front Vertical Up Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
8. CHECK THE (P121) DRIVER SEAT FRONT VERTICAL DOWN DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P121) Driver Seat Front Vertical Down Driver circuit between the Driver Front Vertical Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (P121) Driver Seat Front Vertical Down Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: Whenever the Seat Motor is activated.

1. Set Condition: If the Memory Seat Module does not detect the rotation of the Seat Motor this DTC will set.

Scheme 538

Scheme 539

Scheme 540

Scheme 541

Scheme 542

1. CHECK FOR RELATED DIAGNOSTIC TROUBLE CODES Turn the ignition on. With the scan tool, read DTC's. Does the scan tool display any seat position sensor DTC's? Yes Diagnose and repair the other DTC(s) first. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Diagnosis and Testing»(ref-350113-S41009286612009121400000) . No Go to step 2
2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, erase all DTC's. Move the Driver Seat Switch in the Rear Vertical up and down position three times. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Driver Rear Vertical Seat Adjuster Motor harness connector. Turn the ignition on. Measure the voltage between the (G402) Driver Seat Rear Vertical Position Sense circuit and the (G492) Driver Seat Rear Vertical Sensor Ground circuit at the Driver Rear Vertical Seat Adjuster Motor harness connector. Is the voltage above 10.0 volts? Yes Go to step 4 No Go to step 5
4. CHECK THE DRIVER SEAT REAR VERTICAL UP/DOWN DRIVER CIRCUIT VOLTAGE Using a 12-volt test light connect one lead to the (P111) Driver Seat Rear Vertical Up Driver circuit and the other lead to (P113) Driver Seat Rear Vertical Down Driver circuit at the Driver Rear Vertical Seat Adjuster Motor harness connector. Move the Driver Seat Switch in the Rear Vertical up and down position. Does the test light illuminate with the seat switch engaged in both positions? Yes Replace the track/Rear Vertical motor assembly in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Go to step 7
5. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (G402) Driver Seat Rear Vertical Position Sense circuit between the Driver Rear Vertical Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 6 No Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
6. CHECK THE (G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (G492) Driver Seat Rear Vertical Sensor Ground circuit between the Driver Rear Vertical Seat Adjuster Motor connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (G492) Driver Seat Rear Vertical Sensor Ground circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
7. CHECK THE (P111) DRIVER SEAT REAR VERTICAL UP DRIVER CIRCUIT FOR AN OPEN Disconnect the Memory Seat Module C2 harness connector. Measure the resistance of the (P111) Driver Seat Rear Vertical Up Driver circuit between the Driver Rear Vertical Seat Adjuster Motor harness connector to the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Go to step 8 No Repair the (P111) Driver Seat Rear Vertical Up Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
8. CHECK THE (P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P113) Driver Seat Rear Vertical Down Driver circuit between the Driver Rear Vertical Seat Adjuster Motor harness connector and the Memory Seat Module C2 harness connector. Is the resistance below 10.0 ohms? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (P113) Driver Seat Rear Vertical Down Driver circuit for an open. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: Whenever the Seat Motor is activated.

1. Set Condition: Seat becomes de-standardized. If the seat is not standardized, an Easy Exit/Entry function can not be performed. If seat is standardized (learn seat cushion horizontal front hardstop) and then becomes de-standardized (conditions are: seat cushion motor is 5% past the expected hard stop position or seat cushion hall sensor failure is occurred), a DTC is logged.

1. When Monitored: Engine running, during seat motor operation.

1. Set Condition: This code is set immediately after the Memory Seat Module (MSM) receives a low charging system voltage message over the CAN Interior Bus or detects voltage under 9.5 volts on the (A210) Fused B(+) circuit.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Scheme 543

Scheme 544

1. CHECK ECM/PCM FOR CHARGING SYSTEM DTC With the scan tool, read ECM/PCM DTC's. Are there any Charging System DTC's set in the ECM/PCM? Yes Refer to «Electrical - Engine Systems/Charging - Diagnosis and Testing»(ref-350058-S12800894622009121400000) , or «DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Diagnosis and Testing»(ref-350090) or «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-350089) for Charging System diagnostic procedures. No Go to step 2
2. TEST FOR INTERMITTENT CONDITION With the scan tool, erase all DTC's. Turn the ignition switch to the OFF position then start the engine and operate the driver power seat. With the scan tool, read DTC's. Does the scan tool display this DTC? Yes Go to step 3 No The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
3. (A210) FUSED B(+) CIRCUIT OPEN Turn the ignition off. Disconnect the Memory Seat Module C1 harness connector. Start the engine and let idle. Measure the voltage on the (A210) Fused B(+) circuit at the Memory Seat Module C1 harness connector and compare to voltage at the vehicle battery. Is the voltage at the Memory Seat Module connector the same as measured at the battery? Yes Go to step 4 No Repair the (A210) Fused B(+) circuit as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .
4. (Z913) GROUND CIRCUIT OPEN Turn the ignition off. Using a 12-volt test light connected to 12 volts, check the (Z913) Ground circuit at the Memory Seat Module C1 harness connector. Does the test light illuminate brightly? Yes Replace the Memory Seat Module in accordance with the Service Information. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) . No Repair the (Z913) Ground circuit as necessary. Perform POWER SEAT SYSTEM VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure»(ref-350113-S09556609342009121400000) .

1. When Monitored: Engine running, during seat operation.

1. Set Condition: This code is set immediately after the Memory Seat Module (MSM) receives a high charging system voltage message over the CAN Interior Bus or detects voltage over 16.5 volts on the (A210) Fused B(+) circuit.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

1. When Monitored: Ignition on.

1. Set Condition: This code is set immediately if the Memory Seat Module (MSM) internal self test fails.