Contents Wiring diagrams Section: Power Seat System - Electrical Diagnostics All sections

Possible Causes Dodge Durango II

Power Seat System - Electrical Diagnostics 59 illustrations ~6607 words

Possible Causes

Possible Causes

  1. DRIVER SEAT SWITCH

Scheme 92

Scheme 92: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Press the Seat Switch in all directions several times. Wait one minute. With the scan tool, read DTC's. Does the scan tool display B1D62-POWER SEAT SWITCH STUCK? Yes : Replace the Driver Seat Switch as necessary. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .

Scheme 93

Scheme 93: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: Continuously
  1. Set Condition: When the Seat Memory Module detects an open driver seat switch MUX circuit this code will set.

Possible Causes

  1. (P309) DRIVER SEAT REAR VERTICAL/HORIZONTAL SWITCH MUX OPEN
  2. (P311) DRIVER SEAT FRONT VERTICAL/RECLINER SWITCH MUX OPEN
  3. (P28) DRIVER SEAT SWITCH MUX RETURN OPEN
  4. DRIVER SEAT SWITCH
  5. SEAT MEMORY MODULE

Scheme 94

Scheme 94: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Press the Seat Switch in all directions several times. Wait one minute. With the scan tool, read DTC's. Does the scan tool display B1D63-POWER SEAT SWITCH OPEN? Yes : Go To 2
  3. CHECK THE (P309) DRIVER SEAT REAR VERTICAL/HORIZONTAL SWITCH MUX CIRCUIT RESISTANCE Disconnect the Seat Memory Module C4 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance between the (P309) Driver Seat Rear Vertical/Horizontal Switch MUX circuit and the (P28) Driver Seat Switch MUX L Return circuit in the C4 connector. Is the resistance 47.0 ohms + or - 1.0? Yes : Go To 3 No : Go To 6
  4. CHECK THE (P311) DRIVER SEAT FRONT VERTICAL/RECLINER SWITCH MUX CIRCUIT RESISTANCE Measure the resistance between the (P311) Driver-Seat Front Vertical/Recliner Switch MUX circuit and the (P28) Driver Seat Switch MUX Return circuit in the C4 connector. Is the resistance 47.0 ohms + or - 1.0? Yes : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 4
  5. CHECK THE (P311) DRIVER SEAT FRONT VERTICAL/RECLINER SWITCH MUX WIRE RESISTANCE Disconnect the Driver Seat Switch. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (P311) Driver Seat Front Vertical/Recliner Switch MUX circuit between the C4 connector and the Driver Seat Switch connector. Is the resistance below 1.0 ohm? Yes : Replace the Driver Seat Switch. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Repair the (P311) Driver Seat Front Vertical/Recliner Switch MUX circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  6. CHECK THE (P309) DRIVER SEAT REAR VERTICAL/HORIZONTAL SWITCH MUX WIRE RESISTANCE Measure the resistance of the (P309) Driver Seat Rear Vertical/Horizontal Switch MUX circuit between the C4 connector and the Driver Seat Switch connector. Is the resistance below 1.0 ohm? Yes : Go To 6 No : Repair the (P309) Driver Seat Rear Vertical/Horizontal Switch MUX circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  7. CHECK THE (P28) DRIVER SEAT SWITCH MUX RETURN WIRE RESISTANCE Measure the resistance of the (P28) Driver Seat Switch MUX Return circuit between the C4 connector and the Driver Seat Switch connector. Is the resistance below 1.0 ohm? Yes : Replace the Driver Seat Switch. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Repair the (P28) Driver Seat Switch MUX Return circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 95

Scheme 95: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If sensor voltage is not within a specified range this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT SHORTED TO GROUND
  2. DRIVER HORIZONTAL SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 96

Scheme 96: Diagnostic Test

Scheme 97

Scheme 97

Scheme 98

Scheme 98
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Horizontal position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D6D-SEAT HORIZONTAL POSITION SENSOR CIRCUIT LOW? Yes : Go To 2
  3. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE VOLTAGE Disconnect the Driver Horizontal Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the Seat Switch in the Horizontal position during the next step. Using a 12-volt test light connect one lead to the (G401) Driver Seat Horizontal Position Sense circuit and the other lead to Driver Seat Horizontal Sensor Ground at the Driver Horizontal Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Replace the seat track horizontal motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 3
  4. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE WIRE FOR A SHORT TO GROUND Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G401) Driver Seat Horizontal Position Sense wire at the Driver Horizontal Seat Adjuster Motor connector to ground. Is the resistance below 1000.0 ohm? Yes : Repair the (G401) Driver Seat Horizontal Position Sense circuit for a short to ground. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 99

Scheme 99: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G401) DRIVER SEAT HORZONTAL POSITION SENSE CIRCUIT SHORTED TO VOLTAGE
  2. DRIVER RECLINER SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 100

Scheme 100: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the seat switch in the horizontal position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D6E-SEAT HORIZONTAL POSITION SENSOR CIRCUIT HIGH? Yes : Go To 2
  3. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE VOLTAGE Disconnect the Driver Horizontal Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. With the scan tool erase DTC's Move the seat switch in the horizontal positions 3 times. With the scan tool, read DTC's. Does the same DTC reset? No : Inspect the position sense wire for a possible intermittent short to voltage from another circuit, If OK replace the Driver Horizontal, Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) Yes : Inspect the-position sense wire for a possible short to voltage from another circuit, if OK replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 101

Scheme 101: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If sensor voltage is not within a specified range this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT SHORTED TO GROUND
  2. FRONT DRIVER VERTICAL SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 102

Scheme 102: Diagnostic Test

Scheme 103

Scheme 103

Scheme 104

Scheme 104
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Front Vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D71-SEAT FRONT VERTICAL POSITION SENSOR CIRCUIT LOW? Yes : Go To 2
  3. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE VOLTAGE Disconnect the Front Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the seat switch in the front vertical position during the next step. Using a 12-volt test light connect one lead to the (G404) Driver Seat Front Vertical Position Sense circuit and the other lead to the Driver Seat Front Vertical Sensor Ground at the Front Driver Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Replace the Front Driver Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 3
  4. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE WIRE FOR A SHORT TO GROUND Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G404) Driver Seat Front Vertical Position Sense wire at the Front Driver Vertical Seat Adjuster Motor connector to ground. Is the resistance below 1000.0 ohm? Yes : Repair the (G404) Driver Seat Front Vertical Position Sense circuit for a short to ground. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 105

Scheme 105: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT SHORTED TO VOLTAGE
  2. REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 106

Scheme 106: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the seat switch front vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D72-SEAT FRONT VERTICAL POSITION SENSOR CIRCUIT HIGH? Yes : Go To 2
  3. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE VOLTAGE Disconnect the Front Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. With the scan tool erase DTC's Move the seat switch in the both front vertical positions 3 times. With the scan tool, read DTC's. Does the same DTC reset? No : Inspect the position sense wire for a possible intermittent short to another circuit, if OK replace the Front Driver Vertical Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) Yes : Inspect the position sense wire for a possible short to another circuit, if OK replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 107

Scheme 107: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If sensor voltage is not within a specified range this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT SHORTED TO GROUND
  2. REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 108

Scheme 108: Diagnostic Test

Scheme 109

Scheme 109

Scheme 110

Scheme 110
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Rear Vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D75-SEAT REAR VERTICAL POSITION SENSOR CIRCUIT LOW? Yes : Go To 2
  3. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE VOLTAGE Disconnect the Rear Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the seat switch in the rear vertical position during the next step. Using a 12-volt test light connect one lead to the (G402) Driver Seat Rear Vertical Position Sense circuit and the other lead to Driver Seat Rear Vertical Sensor Ground at the Rear Driver Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Replace the Rear Driver Vertical Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 3
  4. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE WIRE FOR A SHORT TO GROUND Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G402) Driver Seat Rear Vertical Position Sense wire at the Rear Driver Vertical Seat Adjuster Motor connector to ground. Is the resistance below 1000.0 ohm? Yes : Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for a short to ground. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 111

Scheme 111: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT SHORTED TO VOLTAGE
  2. REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 112

Scheme 112: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the seat switch rear vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D76-SEAT REAR VERTICAL POSITION SENSOR CIRCUIT HIGH? Yes : Go To 2
  3. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE VOLTAGE Disconnect the Rear Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. With the scan tool erase DTC's Move the seat switch in the both rear vertical positions 3 times. With the scan tool, read DTC's. Does the same DTC reset? No : Inspect the position sense wire for a possible intermittent short to voltage from another circuit, if OK replace the Rear Driver Vertical Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) Yes : Inspect the position sense wire for a possible short to voltage from another circuit, if OK replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 113

Scheme 113: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If sensor voltage is not within a specified range this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT SHORTED TO GROUND
  2. DRIVER RECLINER SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 114

Scheme 114: Diagnostic Test

Scheme 115

Scheme 115

Scheme 116

Scheme 116
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch recliner position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D79-SEAT BACKREST POSITION SENSOR CIRCUIT LOW? Yes : Go To 2
  3. CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE VOLTAGE Disconnect the Driver Recliner Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the seat switch in the recliner position during the next step. Using a 12-volt test light connect one lead to the (G403) Driver Seat Recliner Position Sense circuit and the other lead to Driver Seat Recliner Position Sensor Ground at the Driver Recliner Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Replace the Driver Recliner Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 3
  4. CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE WIRE FOR A SHORT TO GROUND Disconnect the Seat Memory Module C2 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G403) Driver Seat Recliner Position Sense wire at the Driver Recliner Seat Adjuster Motor connector to ground. Is the resistance below 1000.0 ohm? Yes : Repair the (G403) Driver Seat Recliner Position Sense circuit for a short to ground. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 117

Scheme 117: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
  1. Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT SHORTED TO VOLTAGE
  2. DRIVER RECLINER SEAT ADJUSTER MOTOR
  3. SEAT MEMORY MODULE

Scheme 118

Scheme 118: Diagnostic Test
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the seat switch recliner position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D7A-SEAT BACKREST POSITION SENSOR CIRCUIT HIGH? Yes : Go To 2
  3. CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE VOLTAGE Disconnect the Driver Recliner Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. With the scan tool erase DTC's Move the seat switch in the both recliner positions 3 times. With the scan tool, read DTC's. Does the same DTC reset? No : Inspect the position sense wire for a possible intermittent short to voltage from another circuit, if OK replace the Driver Recliner Seat Adjuster Motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) Yes : Inspect the position sense wire for a possible short to voltage from another circuit, if OK replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 119

Scheme 119: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: Whenever the seat motor is activated.
  1. Set Condition: If the Seat Memory Module does not detect the rotation of the seat motor this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
  2. (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT OPEN
  3. (G491) DRIVER SEAT HORIZONTAL SENSOR GROUND CIRCUIT OPEN
  4. (P115) DRIVER SEAT HORIZONTAL FORWARD DRIVER
  5. (P117) DRIVER SEAT HORIZONTAL REARWARD DRIVER
  6. DRIVER HORIZONTAL SEAT ADJUSTER MOTOR
  7. SEAT MEMORY MODULE

Scheme 120

Scheme 120: Diagnostic Test

Scheme 121

Scheme 121

Scheme 122

Scheme 122

Scheme 123

Scheme 123

Scheme 124

Scheme 124

Scheme 125

Scheme 125

Scheme 126

Scheme 126
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. 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. Refer to «DTC INDEX»(ref-212799-S08928894532006071800000) for a complete list of symptoms. No : Go To 2
  3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Horizontal position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D7B-SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE? Yes : Go To 3
  4. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE VOLTAGE Disconnect the Driver Horizontal Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the Seat Switch in the Horizontal position during the next step. Using a 12-volt test light connect one lead to the (G401) Driver Seat Horizontal Position Sense circuit and the other lead to Driver Seat Horizontal Sensor Ground at the Driver Horizontal Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Go To 4 No : Go To 6
  5. CHECK THE DRIVER SEAT HORIZONTAL FORWARD/REARWARD DRIVER VOLTAGE Move the Seat Switch in the Horizontal position during the next step. 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 connector. Does the test light illuminate with the seat switch engaged? Yes : Replace the track/horizontal motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  6. CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G401) Driver Seat Horizontal Position Sense circuit at the Driver Horizontal Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G401) Driver Seat Horizontal Position Sense circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 6
  7. CHECK THE (G491) DRIVER SEAT HORIZONTAL SENSOR GROUND FOR AN OPEN Measure the resistance of the (G491) Driver Seat Horizontal Sensor Ground circuit at the Driver Horizontal Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G491) Driver Seat Horizontal Senor Ground circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  8. CHECK THE (P115) DRIVER SEAT HORIZONTAL FORWARD DRIVER WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (P115) Driver Seat Horizontal Forward Driver circuit at the Driver Horizontal Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P115) Driver Seat Horizontal Forward Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  9. CHECK THE (P117) DRIVER SEAT HORIZONTAL REARWARD DRIVER AN OPEN Measure the resistance of the (P117) Driver Seat Horizontal Rearward Driver circuit at the Driver Horizontal Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P117) Driver Seat Horizontal Rearward Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 127

Scheme 127: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: Whenever the seat motor is activated.
  1. Set Condition: If the Seat Memory Module does not detect the rotation of the seat motor this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
  2. (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE CIRCUIT OPEN
  3. (G494) DRIVER SEAT FRONT VERTICAL SENSOR GROUND CIRCUIT OPEN
  4. (P119) DRIVER SEAT FRONT VERTICAL UP DRIVER
  5. (P121) DRIVER SEAT FRONT VERTICAL DOWN DRIVER
  6. FRONT DRIVER VERTICAL SEAT ADJUSTER MOTOR
  7. SEAT MEMORY MODULE

Scheme 128

Scheme 128: Diagnostic Test

Scheme 129

Scheme 129

Scheme 130

Scheme 130

Scheme 131

Scheme 131

Scheme 132

Scheme 132

Scheme 133

Scheme 133

Scheme 134

Scheme 134
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. 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. Refer to «DTC INDEX»(ref-212799-S08928894532006071800000) for a complete list of symptoms. No : Go To 2
  3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Front Vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D7F-SEAT FRONT VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE? Yes : Go To 3
  4. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE VOLTAGE Disconnect the Front Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the Seat Switch in the front vertical position during the next step. Using a 12-volt test light connect one lead to the (G404) Driver Seat Front Vertical Position Sense circuit and the other lead to Driver Seat Front Vertical Sensor Ground at the Driver Front Vertical Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Go To 4 No : Go To 6
  5. CHECK THE DRIVER SEAT FRONT VERTICAL UP/DOWN DRIVER VOLTAGE Move the Seat Switch in the front vertical position during the next step. Using a 12-volt test light connect one lead to the (G119) Driver Seat Front Vertical Up Driver circuit and the other lead to (P121) Driver Seat Front Vertical Down Driver circuit at the Front Driver Vertical Seat Adjuster Motor connector. Does the test light illuminate with the seat switch engaged? Yes : Replace the Front Driver Vertical Seat Adjuster motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  6. CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G404) Driver Seat Front Vertical Position Sense circuit at the Front Driver Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G404) Driver Seat Front Vertical Position Sense circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 6
  7. CHECK THE (G494) DRIVER SEAT FRONT VERTICAL SENSOR GROUND FOR AN OPEN Measure the resistance of the (G494) Driver Seat Front Vertical Sensor Ground circuit at the Driver Front Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G494) Driver Seat Front Vertical Senor Ground circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  8. CHECK THE (P119) DRIVER SEAT FRONT VERTICAL UP DRIVER WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (P119) Driver Seat Front Vertical Up Driver circuit at the Driver Front Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P119) Driver Seat Front Vertical Up Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  9. CHECK THE (P121) DRIVER SEAT FRONT VERTICAL DOWN DRIVER AN OPEN Measure the resistance of the (P121) Driver Seat Front Vertical Down Driver circuit at the Driver Front Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P121) Driver Seat Front Vertical Down Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 135

Scheme 135: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: Whenever the seat motor is activated.
  1. Set Condition: If the Seat Memory Module does not detect the rotation of the seat motor this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
  2. (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT OPEN
  3. (G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND CIRCUIT OPEN
  4. (P111) DRIVER SEAT REAR VERTICAL UP DRIVER
  5. (P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER
  6. REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
  7. SEAT MEMORY MODULE

Scheme 136

Scheme 136: Diagnostic Test

Scheme 137

Scheme 137

Scheme 138

Scheme 138

Scheme 139

Scheme 139

Scheme 140

Scheme 140

Scheme 141

Scheme 141

Scheme 142

Scheme 142
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. 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. Refer to «DTC INDEX»(ref-212799-S08928894532006071800000) for a complete list of symptoms. No : Go To 2
  3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Rear Vertical position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D83-SEAT REAR VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE? Yes : Go To 3
  4. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE VOLTAGE Disconnect the Rear Driver Vertical Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the Seat Switch in the rear vertical position during the next step. Using a 12-volt test light connect one lead to the (G402) Driver Seat Rear Vertical Position Sense circuit and the other lead to Driver Seat Rear Vertical Sensor Ground at the Driver Rear Vertical Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Go To 4 No : Go To 6
  5. CHECK THE DRIVER SEAT REAR VERTICAL UP/DOWN DRIVER VOLTAGE Move the Seat Switch in the rear vertical position during the next step. Using a 12-voit 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 Rear Driver Vertical Seat Adjuster Motor connector. Does the test light illuminate with the seat switch engaged? Yes : Replace the Rear Driver Vertical Seat Adjuster motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  6. CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G402) Driver Seat Rear Vertical Position Sense circuit at the Rear Driver Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 6
  7. CHECK THE (G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND FOR AN OPEN Measure the resistance of the (G492) Driver Seat Rear Vertical Sensor Ground circuit at the Driver Rear Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G492) Driver Seat Rear Vertical Senor Ground circuit for an open. Perform MEMORY SYSTEM VERIFICATION TEST - VER 1 No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  8. CHECK THE (P111) DRIVER SEAT REAR VERTICAL UP DRIVER WIRE FOR AN OPEN Disconnect the Seat Memory Module C3 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (P111) Driver Seat Rear Vertical Up Driver circuit at the Driver Rear Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P111) Driver Seat Rear Vertical Up Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  9. CHECK THE (P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER AN OPEN Measure the resistance of the (P113) Driver Seat Rear Vertical Down Driver circuit at the Driver Rear Vertical Seat Adjuster Motor connector to the C3 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P113) Driver Seat Rear Vertical Down Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)

Scheme 143

Scheme 143: Circuit Schematic

For the Power Seat System circuit diagram (Refer to SCHEMATICS AND DIAGRAMS )

  1. When Monitored: Whenever the seat motor is activated.
  1. Set Condition: If the Seat Memory Module does not detect the rotation of the seat motor this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

Possible Causes

  1. SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
  2. (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT OPEN
  3. (G493) DRIVER SEAT RECLINER POSITION SENSOR GROUND CIRCUIT OPEN
  4. (P141) DRIVER SEAT RECLINER UP DRIVER
  5. (P143) DRIVER SEAT RECLINER DOWN DRIVER
  6. DRIVER RECLINER SEAT ADJUSTER MOTOR
  7. SEAT MEMORY MODULE

Scheme 144

Scheme 144: Diagnostic Test

Scheme 145

Scheme 145

Scheme 146

Scheme 146

Scheme 147

Scheme 147

Scheme 148

Scheme 148

Scheme 149

Scheme 149

Scheme 150

Scheme 150
  1. No : The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) .
  2. 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. Refer to «DTC INDEX»(ref-212799-S08928894532006071800000) for a complete list of symptoms. No : Go To 2
  3. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTC's Move the Seat Switch in the Recliner position 3 times. With the scan tool, read DTC's. Does the scan tool display B1D7B-SEAT BACKREST MOTOR CONTROL CIRCUIT PERFORMANCE? Yes : Go To 3
  4. CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE VOLTAGE Disconnect the Driver Recliner Seat Adjuster Motor. NOTE: Check connectors - Clean and repair as necessary. Move the Seat Switch in the Recliner position during the next step. Using a 12-volt test light connect one lead to the (G403) Driver Seat Recliner Position Sense circuit and the other lead to Driver Seat Recliner Position Sensor Ground at the Driver Recliner Seat Adjuster Motor connector. Does the test light illuminate for approximately 2 seconds then turn off with the seat switch engaged? Yes : Go To 4 No : Go To 6
  5. CHECK THE DRIVER SEAT RECLINER FORWARD/REARWARD DRIVER VOLTAGE Move the Seat Switch in the Recliner position during the next step. Using a 12-volt test light connect one lead to the (P141) Driver Seat Recliner Up Driver circuit and the other lead to (P143) Driver Seat Recliner Down Driver circuit at the Driver Recliner Seat Adjuster Motor connector. Does the test light illuminate with the seat switch engaged? Yes : Replace the Recliner motor assembly. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  6. CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE WIRE FOR AN OPEN Disconnect the Seat Memory Module C2 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (G403) Driver Seat Recliner Position Sense circuit at the Driver Recliner Seat Adjuster Motor connector to the C2 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G403) Driver Seat Recliner Position Sense circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 6
  7. CHECK THE (G493) DRIVER SEAT RECLINER POSTION SENSOR GROUND FOR AN OPEN Measure the resistance of the (G493) Driver Seat Recliner Position Sensor Ground circuit at the Driver Recliner Seat Adjuster Motor connector to the C2 connector. Is the resistance above 1.0 ohm? Yes : Repair the (G493) Driver Seat Recliner Position Senor Ground circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory Module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)
  8. CHECK THE (P141) DRIVER SEAT RECLINER UP DRIVER WIRE FOR AN OPEN Disconnect the Seat Memory Module C2 connector. NOTE: Check connectors - Clean and repair as necessary. Measure the resistance of the (P141) Driver Seat Recliner Up Driver circuit at the Driver Recliner Seat Adjuster Motor connector to the C2 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P141) Driver Seat Recliner Up Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Go To 8
  9. CHECK THE (P143) DRIVER SEAT RECLINER DOWN DRIVER AN OPEN Measure the resistance of the.(P143) Driver Seat Recliner Down Driver circuit at the Driver Recliner Seat Adjuster Motor connector to the C2 connector. Is the resistance above 1.0 ohm? Yes : Repair the (P143) Driver Seat Recliner Down Driver circuit for an open. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000) No : Replace the Seat Memory module. Perform «POWER SEAT SYSTEM VERIFICATION TEST - VER 1»(ref-212799-S24323520742005122700000)