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Heated Seat System - Electrical Diagnostics: Other Dodge Durango II

Seats 71 illustrations ~7763 words

When Monitored

  1. When Monitored: Ignition on, during the heated seat operation.

Set Condition

  1. Set Condition: This code is set immediately after the Heated Seat Module detects the control circuit shorted to ground.

Possible Causes

Possible Causes

  1. (P187) DRIVER SEAT HEATER B(+) DRIVER SHORTED TO GROUND
  2. SEAT HEATER ELEMENT PIGTAIL HARNESS SHORTED
  3. SEAT CUSHION HEATER ELEMENT SHORTED
  4. SEAT BACK HEATER ELEMENT SHORTED
  5. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 19

Scheme 19: Diagnostic Test
Scheme 19: Diagnostic Test

Scheme 20

Scheme 20
Scheme 20

Scheme 21

Scheme 21
Scheme 21
  1. VERIFY THAT DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1092 FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT DRIVER CUSHION PAD HEATER 2-WAY CONNECTOR AND READ DTC'S Disconnect the Driver Cushion Pad Heater connector. NOTE: Check connectors - Clean and repair as necessary. With the scan tool, erase HSM DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the scan tool display the same DTC? Yes : Go To 7 No : Go To 3
  3. CHECK THE DRIVER SEAT BACK PAD HEATER RESISTANCE Disconnect the Driver Seat Back Pad Heater connector. NOTE: Check connectors - Clean and repair as necessary. Check the resistance of the seat back heater element by measuring between the (P187) Driver Seat Heater B(+) Driver and the Ground circuit at the driver seat back pad connector. Is the resistance below 4.0 ohms? No : Go To 4 Yes : Replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  4. CHECK THE DRIVER SEAT BACK PAD HEATER FOR A SHORT TO GROUND Measure between the (P187) Driver Seat Heater B(+) Driver circuit at the Driver Seat Back Pad Heater connector and the seat frame for a short to ground. Is the resistance below 1000 ohms? Yes : Repair the pigtail harness for a short to ground condition or replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 5
  5. CHECK THE DRIVER CUSHION PAD HEATER RESISTANCE Check the resistance of the cushion heater element by measuring between the (P187) Driver Seat Heater B(+) Driver and the Ground circuit at the driver cushion pad connector. Was the resistance below 3.5 ohms? No : Go To 6 Yes : Replace the heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  6. CHECK THE DRIVER CUSHION PAD HEATER FOR A SHORT TO GROUND Measure between the (P187) Driver Seat Heater B(+) Driver circuit at the Driver Cushion Pad Heater connector and the seat frame for a short to ground. Is the resistance below 1000 ohms? Yes : Repair the pigtail harness or replace the heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  7. Check the (P187) Driver Seat Heater B(+) Driver circuit for a short to ground Disconnect the Heat Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Measure the (P187) Driver Seat Heater B(+) Driver circuit to ground at the HSM connector. Is the resistance below 5.0 ohms? Yes : Repair the (P187) Driver Seat Heater B(+) Driver circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Heated Seat Module. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 22

Scheme 22: Wiring Diagram
Scheme 22: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: lgnition on, during the heated seat operation.
  1. Set Condition: This code is set immediately after the Heated Seat Module detects the seat heater B(+) circuit shorted to ground.

Possible Causes

  1. (P188) PASSENGER SEAT HEATER B(+) DRIVER SHORTED TO GROUND
  2. SEAT HEATER ELEMENT PIGTAIL HARNESS SHORTED
  3. SEAT CUSHION HEATER ELEMENT SHORTED
  4. SEAT BACK HEATER ELEMENT SHORTED
  5. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 23

Scheme 23: Diagnostic Test
Scheme 23: Diagnostic Test

Scheme 24

Scheme 24
Scheme 24

Scheme 25

Scheme 25
Scheme 25
  1. VERIFY THAT DTC B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions "several times. With the scan tool, read DTC's. Does the DTC B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT PASSENGER CUSHION PAD HEATER 2-WAY CONNECTOR AND READ DTC'S Disconnect the Passenger Cushion Pad Heater connector. NOTE: Check connectors - Clean and repair as necessary. With the scan tool, erase HSM DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the scan tool display the same DTC? Yes : Go To 7 No : Go To 3
  3. CHECK THE PASSENGER SEAT BACK PAD HEATER RESISTANCE Disconnect the Passenger Seat Back Pad Heater connector. NOTE: Check connectors - Clean and repair as necessary. Check the resistance of the seat back heater element by measuring between the (P188) Passenger Seat Heater B(+) Driver and the Ground circuit at the Passenger Seat Back Pad connector. Is the resistance below 4.0 ohms? No : Go To 4 Yes : Replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  4. CHECK THE PASSENGER SEAT BACK PAD HEATER FOR A SHORT TO GROUND Measure between the (P188) Passenger Seat Heater B(+) Driver circuit at the Passenger Seat Back Pad Heater connector and the seat frame for a short to ground. Is the resistance below 1000 ohms? Yes : Repair the pigtail harness for a short to ground condition or replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 5
  5. CHECK THE PASSENGER CUSHION PAD HEATER RESISTANCE Check the resistance of the cushion heater element by measuring between the (P188) Passenger Seat Heater B(+) Driver and the Ground circuit at the Passenger Cushion Pad Heater connector. Was the resistance below 3.5 ohms? No : Go To 6 Yes : Replace the heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  6. CHECK THE PASSENGER CUSHION PAD HEATER FOR A SHORT TO GROUND Measure between the (P188) Passenger Seat Heater B(+) Driver circuit at the Passenger Cushion Pad Heater connector and the seat frame for a short to ground. Is the resistance below 1000 ohms? Yes : Repair the pigtail harness or replace the heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  7. Check the (P188) Passenger Seat Heater B(+) Driver circuit for a short to ground Disconnect the Heated Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Measure the (P188) Passenger Seat Heater B(+) Driver circuit to ground at the HSM connector. Is the resistance below 5.0 ohms? Yes : Repair the (P188) Passenger Seat Heater B(+) Driver circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Heated Seat Module. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 26

Scheme 26: Wiring Diagram
Scheme 26: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: lgnition on, during the heated seat operation.
  1. Set Condition: This code is set immediately after the Heated Seat Module detects an open in the seat heater B(+) driver circuit.

Possible Causes

  1. (P187) DRIVER SEAT HEATER B(+) DRIVER WIRE OPEN
  2. (Z971) GROUND WIRE OPEN
  3. SEAT CUSHION HEATER ELEMENT OPEN
  4. SEAT BACK HEATER ELEMENT OPEN
  5. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 27

Scheme 27: Diagnostic Test
Scheme 27: Diagnostic Test

Scheme 28

Scheme 28
Scheme 28

Scheme 29

Scheme 29
Scheme 29

Scheme 30

Scheme 30
Scheme 30
  1. VERIFY THAT DTC B1094-FRONT LEFT SEAT HEATER CONTROL CIRCUIT OPEN IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1094 FRONT LEFT SEAT HEATER CONTROL CIRCUIT OPEN reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. CHECK FOR AN OPEN SEAT HEATER ELEMENT Disconnect the Driver Cushion Pad Heater 2 - way connector. NOTE: Check connectors - Clean and repair as necessary. Measure the total resistance of the cushion and seat back heater elements at the Driver Cushion Pad 2 - way connector (seat side). Is the total resistance 2.5 ohms + or - .5 ohms? Yes : Go To 4 No : Go To 3
  3. CHECK THE DRIVER SEAT BACK PAD HEATER RESISTANCE Disconnect the Driver Seat Back Pad Heater 2 - way connector. NOTE: Check connectors - Clean and repair as necessary. Check the resistance of the seat back heater element by measuring between the (P187) Driver Seat Heater B(+) Driver and the Ground circuit at the connector. Is the resistance above 5.8 ohms? Yes : Repair the open pigtail harness or replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the open pigtail harness or replace the seat cushion heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  4. CHECK THE DRIVER SEAT HEATER GROUND CIRCUIT RESISTANCE Measure the resistance of the Ground circuit at the Heater Cushion Pad 2 - way connector. Was the resistance below 5.0 ohms? Yes : Go To 5 No : Repair the open ground circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. Check the (P187) Driver Seat Heater B(+) Driver circuit for an open. Disconnect the Heated Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Measure the (P187) Driver Seat Heater B(+) Driver circuit from the Driver Cushion Pad connector to the HSM connector. Is the resistance below 5.0 ohms? Yes : Replace the Heated Seat Module. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P187) Driver Seat Heater B(+) Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 31

Scheme 31: Wiring Diagram
Scheme 31: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: lgnition on, during the heated seat operation.
  1. Set Condition: This code is set immediately after the Heated Seat Module detects an open in the seat heat B(+) driver circuit.

Possible Causes

  1. (P188) PASSENGER SEAT HEATER B(+) DRIVER WIRE OPEN
  2. (Z971) GROUND WIRE OPEN
  3. SEAT CUSHION HEATER ELEMENT OPEN
  4. SEAT BACK HEATER ELEMENT OPEN
  5. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 32

Scheme 32: Diagnostic Test
Scheme 32: Diagnostic Test

Scheme 33

Scheme 33
Scheme 33

Scheme 34

Scheme 34
Scheme 34

Scheme 35

Scheme 35
Scheme 35
  1. VERIFY THAT DTC B1098-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1098 FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. CHECK FOR AN OPEN SEAT HEATER ELEMENT Disconnect the Passenger Cushion Pad Heater 2 - way connector. NOTE: Check connectors - Clean and repair as necessary. Measure the total resistance of the cushion and seat back heater elements at the Passenger Cushion Pad 2 - way connector (seat side). Is the total resistance 2.5 ohms + or - .5 ohms? Yes : Go To 4 No : Go To 3
  3. CHECK THE PASSENGER SEAT BACK PAD HEATER RESISTANCE Disconnect the Passenger Seat Back Pad Heater 2 - way connector. NOTE: Check connectors - Clean and repair as necessary. Check the resistance of the seat back heater element by measuring between the (P188) Passenger Seat Heater B(+) Driver and the Ground circuit at the passenger seat back pad connector. Is the resistance above 5.8 ohms? Yes : Repair the open pigtail harness or replace the seat back heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the open pigtail harness or replace the seat cushion heater element as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  4. CHECK THE PASSENGER SEAT HEATER GROUND CIRCUIT RESISTANCE Measure the resistance of the Ground circuit at the Heater Cushion Pad 2 - way connector. Was the resistance below 5.0 ohms? Yes : Go To 5 No : Repair the open ground circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. Check the (P188) Passenger Seat Heater B(+) Driver circuit for an open. Disconnect the Heated Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Measure the (P188) Passenger Seat Heater B(+) Driver circuit from the Passenger Cushion Pad connector to the HSM connector. Is the resistance below 5.0 ohms? Yes : Replace the Heated Seat Module. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P188) Passenger Seat Heater B(+) Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  1. When Monitored: Engine running, during heated seat operation.
  1. Set Condition: This code is set immediately after the Heated Seat Module receives a low charging system voltage message over the CAN B Bus or detects voltage under 11.3 volts on the (A940) Fused B(+) circuit.

Possible Causes

  1. CHARGING SYSTEM VOLAGE LOW
  2. (A940) FUSED B(+) CIRCUIT
  3. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 36

Scheme 36: Diagnostic Test
Scheme 36: Diagnostic Test

Scheme 37

Scheme 37
Scheme 37
  1. CHECK PCM FOR CHARGING SYSTEM DTC With the scan tool, read Powertrain Control Module DTC's. Are there any Charging System DTC's set in the Powertrain Control Module? Yes : (Refer to - «DIAGNOSIS AND TESTING»(ref-212783-S38364132682005122700000) ) for Charging System diagnostic procedures. No : Go To 2 Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. VERIFY THAT DTC B210D-BATTERY VOLTAGE LOW IS ACTIVE With the scan tool, record and erase DTC's Turn the ignition switch to the Off position then start the engine and let run for one minute. With the scan tool, read DTC's. Does the DTC B210D-BATTERY VOLTAGE LOW reset? Yes : Go To 3 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. CHECK THE VOLTAGE ON THE (A940) FUSED B(+) CIRCUIT Disconnect the Heated Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Start the engine and let idle. Measure the voltage on the (A940) Fused B(+) circuit at the HSM connector and compare to voltage at the vehicle battery. Is the voltage at the HSM connector the same as measured at the battery? Yes : Replace the Heated Seat Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (A940) Fused B(+) circuit as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  1. When Monitored: Ignition on.
  1. Set Condition: This code is set immediately if the Heated Seat Module internal self test fails.

Possible Causes

  1. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 38

Scheme 38: Diagnostic Test
Scheme 38: Diagnostic Test
  1. VERIFY THAT DTC B221A-HEATED SEAT MODULE INTERNAL IS ACTIVE With the scan tool, record and erase DTC's Cycle the ignition switch off then back on. With the scan tool, read DTC's. Does the DTC B221A-HEATED SEAT MODULE INTERNAL reset? Yes : Replace the Heated Seat Module. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  1. When Monitored: Engine running, during heated seat operation.
  1. Set Condition: This code is set immediately after the Heated Seat Module receives a high charging system voltage message over the CAN B Bus or detects voltage over 15 volts on the (A940) Fused B(+) circuit.

Possible Causes

  1. CHARGING SYSTEM VOLAGE HIGH
  2. (A940) FUSED B(+) CIRCUIT
  3. HEATED SEAT MODULE

Always perform the PRELIMINARY TEST before proceeding.

Scheme 39

Scheme 39: Diagnostic Test
Scheme 39: Diagnostic Test

Scheme 40

Scheme 40
Scheme 40
  1. CHECK PCM FOR CHARGING SYSTEM DTC With the scan tool, read Powertrain Control Module DTC's. Are there any Charging System DTC's set in the Powertrain 1 Control Module? Yes : (Refer to - «DIAGNOSIS AND TESTING»(ref-212783-S38364132682005122700000) ) for Charging System diagnostic procedures. No : Go To 2
  2. VERIFY THAT DTC B210E-BATTERY VOLTAGE HIGH IS ACTIVE With the scan tool, record and erase DTC's Turn the ignition switch to the Off position then start the engine and let run for one minute. Attempt to operate the heated seats. With the scan tool, read DTC's. Does the DTC B210E-BATTERY VOLTAGE HIGH reset? Yes : Go To 3 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. CHECK THE VOLTAGE ON THE (A940) FUSED B(+) CIRCUIT Disconnect the Heated Seat Module connector. NOTE: Check connectors - Clean and repair as necessary. Start the engine and let idle. Measure the voltage on the (A940) Fused B(+) circuit at the HSM connector and compare to voltage at the vehicles battery. Is the voltage at the HSM connector the same as measured at the battery? Yes : Replace the Heated Seat Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (A940) Fused B(+) circuit as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 41

Scheme 41: Wiring Diagram
Scheme 41: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: lgnition on, during the heated seat operation.
  1. Set Condition: This code is set immediately after the Cluster detects the heated seat switch MUX circuit low.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P7) DRIVER HEATED SEAT SWITCH MUX OPEN/SHORTED TO GROUND
  4. DRIVER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 42

Scheme 42: Diagnostic Test
Scheme 42: Diagnostic Test

Scheme 43

Scheme 43
Scheme 43

Scheme 44

Scheme 44
Scheme 44

Scheme 45

Scheme 45
Scheme 45

Scheme 46

Scheme 46
Scheme 46
  1. VERIFY THAT DTC B1085-LEFT HEATED SEAT SWITCH INPUT CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1085 LEFT HEATED SEAT SWITCH INPUT CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check the Junction Block Fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-1 CONNECTOR AND CHECK FOR VOLTAGE Reinstall the fuse if removed in previous test. Disconnect the Cluster C-1 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P7) Driver Heated Seat Switch MUX circuit at the Cluster C-1 connector. Is the voltage above 10.0 volts? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Driver Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit at the Driver Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P7) DRIVER HEATED SEAT SWITCH MUX CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P7) Driver Heated Seat Switch MUX circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P7) Driver Heated Seat Switch MUX circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P7) DRIVER HEATED SEAT SWITCH MUX CIRCUIT FOR AN OPEN Measure the resistance of the (P7) Driver Heated Seat Switch MUX circuit between the Cluster C-1 connector and the Driver Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Driver Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P7) Driver Heated Seat Switch MUX circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 47

Scheme 47: Wiring Diagram
Scheme 47: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: Ignition on, during the heated seat operation.
  1. Set Condition: This code is set immediately after the Cluster detects the heated seat switch MUX circuit low.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P8) PASSENGER HEATED SEAT SWITCH MUX OPEN/SHORTED TO GROUND
  4. PASSENGER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 48

Scheme 48: Diagnostic Test
Scheme 48: Diagnostic Test

Scheme 49

Scheme 49
Scheme 49

Scheme 50

Scheme 50
Scheme 50

Scheme 51

Scheme 51
Scheme 51

Scheme 52

Scheme 52
Scheme 52
  1. VERIFY THAT DTC B1088-RIGHT HEATED SEAT SWITCH INPUT CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1088 RIGHT HEATED SEAT SWITCH INPUT CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check the Junction Block Fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-1 CONNECTOR AND CHECK FOR VOLTAGE Reinstall the fuse if removed in previous test. Disconnect the Cluster C-1 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P8) Passenger Heated Seat Switch MUX circuit at the Cluster C-1 connector. Is the voltage above 10.0 volts? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Passenger Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit it the Passenger Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P8) PASSENGER HEATED SEAT SWITCH MUX CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P8) Passenger Heated Seat Switch MUX circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P8) Passenger Heated Seat Switch MUX circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P8) PASSENGER HEATED SEAT SWITCH MUX CIRCUIT FOR AN OPEN Measure the resistance of the (P8) Passenger Heated Seat Switch MUX circuit between the Cluster C-1 connector and the Passenger Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Passenger Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P8) Passenger Heated Seat Switch MUX circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 53

Scheme 53: Wiring Diagram
Scheme 53: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored :Continously with the ignition on.
  1. Set Condition :This code is set immediately when the Cluster detects low voltage on the heated seat indicator control circuit.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P83) DRIVER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT OPEN/SHORTED TO GROUND
  4. DRIVER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 54

Scheme 54: Diagnostic Test
Scheme 54: Diagnostic Test

Scheme 55

Scheme 55
Scheme 55

Scheme 56

Scheme 56
Scheme 56

Scheme 57

Scheme 57
Scheme 57

Scheme 58

Scheme 58
Scheme 58
  1. VERIFY THAT DTC B120D-LEFT HEATED SEAT HI INDICATOR CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B120D-LEFT HEATED SEAT HI INDICATOR CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check Junction Block fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Reinstall fuse if removed in previous test. Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P83) Driver Heated Seat High Indicator Driver circuit at the Cluster C-3 connector. Is the voltage above 10.0 volts ? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Driver Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit it the Driver Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P83) DRIVER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P83) Driver Heated Seat High Indicator Driver circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P83) Driver Heated Seat High Indicator Driver circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P83) DRIVER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P83) Driver Heated Seat High Indicator Driver circuit between the Cluster C-3 connector and the Driver Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Driver Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P83) Driver Heated Seat High Indicator Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 59

Scheme 59: Wiring Diagram
Scheme 59: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS

  1. When Monitored :Continously with the ignition on.
  1. Set Condition :This code is set immediately when the Cluster detects low voltage on the heated seat indicator control circuit.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P81) DRIVER HEATED SEAT LOW INDICATOR DRIVER CIRCUIT OPEN/SHORTED TO GROUND
  4. DRIVER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 60

Scheme 60: Diagnostic Test
Scheme 60: Diagnostic Test

Scheme 61

Scheme 61
Scheme 61

Scheme 62

Scheme 62
Scheme 62

Scheme 63

Scheme 63
Scheme 63

Scheme 64

Scheme 64
Scheme 64
  1. VERIFY THAT DTC B1215-LEFT HEATED SEAT LO INDICATOR CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1215-LEFT HEATED SEAT LO INDICATOR CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check Junction Block fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Reinstall fuse if removed in previous test. Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P81) Driver Heated Seat Low Indicator Driver circuit at the Cluster C-3 connector. Is the voltage above 10.0 volts ? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Driver Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit it the Driver Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P81) DRIVER HEATED SEAT LO INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P81) Driver Heated Seat Lo Indicator Driver circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P81) Driver Heated Seat Lo Indicator Driver circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P81) DRIVER HEATED SEAT LO INDICATOR DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P81) Driver Heated Seat Lo Indicator Driver circuit between the Cluster C-3 connector and the Driver Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Driver Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P81) Driver Heated Seat Lo Indicator Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 65

Scheme 65: Wiring Diagram
Scheme 65: Wiring Diagram

For the Heated Seat System circuit diagram (Refer to - SCHEMATICS AND DIAGRAMS ).

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored :Continously with the ignition on.
  1. Set Condition :This code is set immediately when the Cluster detects low voltage on the heated seat indicator control circuit.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P84) PASSENGER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT OPEN/SHORTED TO GROUND
  4. PASSENGER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 66

Scheme 66: Diagnostic Test
Scheme 66: Diagnostic Test

Scheme 67

Scheme 67
Scheme 67

Scheme 68

Scheme 68
Scheme 68

Scheme 69

Scheme 69
Scheme 69

Scheme 70

Scheme 70
Scheme 70
  1. VERIFY THAT DTC B1219-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1219-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check Junction Block fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Reinstall fuse if removed in previous test. Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P84) Passenger Heated Seat High Indicator Driver circuit at the Cluster C-3 connector. Is the voltage above 10.0 volts ? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Passenger Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit at the Passenger Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P84) PASSENGER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P84) Passenger Heated Seat High Indicator Driver circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P84) Passenger Heated Seat High Indicator Driver circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P84) PASSENGER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P84) Passenger Heated Seat High Indicator Driver circuit between the Cluster C-3 connector and the Passenger Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Passenger Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P84) Passenger Heated Seat High Indicator Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 71

Scheme 71: Wiring Diagram
Scheme 71: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS

  1. When Monitored : Continously with the ignition on.
  1. Set Condition : This code is set immediately when the Cluster detects low voltage on the heated seat indicator control circuit.

Possible Causes

  1. JUNCTION BLOCK FUSE #2
  2. (F21) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  3. (P82) PASSENGER HEATED SEAT LOW INDICATOR DRIVER CIRCUIT OPEN/SHORTED TO GROUND
  4. PASSENGER HEATED SEAT SWITCH
  5. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 72

Scheme 72: Diagnostic Test
Scheme 72: Diagnostic Test

Scheme 73

Scheme 73
Scheme 73

Scheme 74

Scheme 74
Scheme 74

Scheme 75

Scheme 75
Scheme 75

Scheme 76

Scheme 76
Scheme 76
  1. VERIFY THAT DTC B1221-RIGHT HEATED SEAT LO INDICATOR CONTROL CIRCUIT LOW IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1221-RIGHT HEATED SEAT LO INDICATOR CONTROL CIRCUIT LOW reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. INSPECT JUNCTION BLOCK FUSE #2 Check Junction Block fuse #2. Is the fuse open? Yes : Check for a possible short to ground on the (F21) Fused Ignition Switch Output Circuit and replace the fuse as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 3
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Reinstall fuse if removed in previous test. Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P82) Passenger Heated Seat Low Indicator Driver circuit at the Cluster C-3 connector. Is the voltage above 10.0 volts ? Yes : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 4
  4. CHECK THE (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) Disconnect the Passenger Heated Seat switch connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage of the (F21) Fused Ignition Switch Output circuit at the Passenger Heated Seat Switch connector. Is the voltage above 10.0 volts ? Yes : Go To 5 No : Repair the (F21) Fused Ignition Switch Output circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  5. CHECK THE (P82) PASSENGER HEATED SEAT LO INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (P82) Passenger Heated Seat Lo Indicator Driver circuit. Was the resistance below 5.0 ohms? Yes : Repair the (P82) Passenger Heated Seat Lo Indicator Driver circuit for a short to ground Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Go To 6
  6. CHECK THE (P82) PASSENGER HEATED SEAT LO INDICATOR DRIVER CIRCUIT FOR AN OPEN Measure the resistance of the (P82) Passenger Heated Seat Lo Indicator Driver circuit between the Cluster C-3 connector and the Passenger Heated Seat Switch connector. Is the resistance below 5.0 ohms? Yes : Replace the Passenger Heated Seat Switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Repair the (P82) Passenger Heated Seat Lo Indicator Driver circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 77

Scheme 77: Wiring Diagram
Scheme 77: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored : Continously with the ignition on.
  1. Set Condition : This code is set immediately when the Cluster detects excessive voltage on the heated seat indicator control circuit.

Possible Causes

  1. (P83) DRIVER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT SHORTED TO BATTERY
  2. DRIVER HEATED SEAT SWITCH
  3. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 78

Scheme 78: Diagnostic Test
Scheme 78: Diagnostic Test

Scheme 79

Scheme 79
Scheme 79
  1. VERIFY THAT DTC B120E-LEFT HEATED SEAT SWITCH HI INDICATOR CONTROL CIRCUIT HIGH IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B120E-LEFT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT THE DRIVER HEATED SEAT SWITCH AND RE-READ DTC Disconnect the Driver Heated Seat Switch connector. With the scan tool erase DTC's Cycle the ignition switch off then back on. With the scan tool, read DTC's. Does the DTC B120E-LEFT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 3 No : Replace the Driver Heated Seat switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P83) Driver Heated Seat High Indicator Driver circuit at the Cluster C-3 connector. Is there any voltage present? Yes : Repair the (P83) Driver Heated Seat High Indicator Driver circuit for a short to battery. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 80

Scheme 80: Wiring Diagram
Scheme 80: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored : Continously with the ignition on.
  1. Set Condition : This code is set immediately when the Cluster detects excessive voltage on the heated seat indicator control circuit.

Possible Causes

  1. (P81) DRIVER HEATED SEAT LO INDICATOR DRIVER CIRCUIT SHORTED TO BATTERY
  2. DRIVER HEATED SEAT SWITCH
  3. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 81

Scheme 81: Diagnostic Test
Scheme 81: Diagnostic Test

Scheme 82

Scheme 82
Scheme 82
  1. VERIFY THAT DTC B1216-LEFT HEATED SEAT SWITCH LO INDICATOR CONTROL CIRCUIT HIGH IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1216-LEFT HEATED SEAT LO INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT THE DRIVER HEATED SEAT SWITCH AND RE-READ DTC Disconnect the Driver Heated Seat Switch connector. With the scan tool erase DTC's Cycle the ignition switch off then back on. With the scan tool, read DTC's. Does the DTC B1216-LEFT HEATED SEAT LO INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 3 No : Replace the Driver Heated Seat switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P81) Driver Heated Seat Low Indicator Driver circuit at the Cluster C-3 connector. Is there any voltage present? Yes : Repair the (P81) Driver Heated Seat Low Indicator Driver circuit for a short to battery. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 83

Scheme 83: Wiring Diagram
Scheme 83: Wiring Diagram

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

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored : Continously with the ignition on.
  1. Set Condition : This code is set immediately when the Cluster detects excessive voltage on the heated seat indicator control circuit.

Possible Causes

  1. (P84) PASSENGER HEATED SEAT HIGH INDICATOR DRIVER CIRCUIT SHORTED TO BATTERY
  2. PASSENGER HEATED SEAT SWITCH
  3. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 84

Scheme 84: Diagnostic Test
Scheme 84: Diagnostic Test

Scheme 85

Scheme 85
Scheme 85
  1. VERIFY THAT DTC B121A-RIGHT HEATED SEAT SWITCH HI INDICATOR CONTROL CIRCUIT HIGH IS ACTIVE With the scan tool, record and erase DTC's. Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B121A-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT THE PASSENGER HEATED SEAT SWITCH AND RE-READ DTC Disconnect the Passenger Heated Seat Switch connector. With the scan tool erase DTC's Cycle the ignition switch off then back on. With the scan tool, read DTC's. Does the DTC B121A-RIGHT HEATED SEAT HI INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 3 No : Replace the Passenger Heated Seat switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P84) Passenger Heated Seat High Indicator Driver circuit at the Cluster C-3 connector. Is there any voltage present? Yes : Repair the (P84) Passenger Heated Seat High Indicator Driver circuit for a short to battery. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 86

Scheme 86: Wiring Diagram
Scheme 86: Wiring Diagram

For the Heated Seat System circuit diagram (Refer to - SCHEMATICS AND DIAGRAMS ).

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored : Continously with the ignition on.
  1. Set Condition : This code is set immediately when the Cluster detects excessive voltage on the heated seat indicator control circuit.

Possible Causes

  1. (P82) PASSENGER HEATED SEAT LOW INDICATOR DRIVER CIRCUIT SHORTED TO BATTERY
  2. PASSENGER HEATED SEAT SWITCH
  3. CLUSTER

Always perform the PRELIMINARY TEST before proceeding.

Scheme 87

Scheme 87: Diagnostic Test
Scheme 87: Diagnostic Test

Scheme 88

Scheme 88
Scheme 88
  1. VERIFY THAT DTC B1222-RIGHT HEATED SEAT SWITCH LO INDICATOR CONTROL CIRCUIT HIGH IS ACTIVE With the scan tool, record and erase DTC's Operate the Heated Seat Switch in both positions several times. With the scan tool, read DTC's. Does the DTC B1222-RIGHT HEATED SEAT LO INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 2 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 «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  2. DISCONNECT THE PASSENGER HEATED SEAT SWITCH AND RE-READ DTC Disconnect the Passenger Heated Seat Switch connector. With the scan tool erase DTC's Cycle the ignition switch off then back on. With the scan tool, read DTC's. Does the DTC B1222-RIGHT HEATED SEAT LO INDICATOR CONTROL CIRCUIT HIGH reset? Yes : Go To 3 Mo : Replace the Passenger Heated Seat switch. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .
  3. DISCONNECT THE CLUSTER C-3 CONNECTOR AND CHECK FOR VOLTAGE Disconnect the Cluster C-3 connector. NOTE: Check connectors - Clean and repair as necessary. Turn the ignition on. Measure the voltage at the (P82) Passenger Heated Seat Low Indicator Driver circuit at the Cluster C-3 connector. Is there any voltage present? Yes : Repair the (P82) Passenger Heated Seat Low Indicator Driver circuit for a short to battery. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) . No : Replace the Cluster in accordance with the Service Information. Perform «BODY VERIFICATION TEST - VER 1»(ref-212783-S10799974092005122700000) .

Scheme 89

Scheme 89: Wiring Diagram
Scheme 89: Wiring Diagram

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

  1. When Monitored: Continuously
  1. Set Condition: Whenever the Can B Bus (+) or B Bus (-) circuit is open, shorted to voltage or shorted to ground, this code will set.

Possible Causes

More articles — Heated Seat System - Electrical Diagnostics