B1098

B1098-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

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

- Set Condition:
This code sets immediately when the Heated Seat Module (HSM) detects that the (P188) Passenger Seat Heater B(+) Driver circuit is open.





1. VERIFY DTC B1098-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Operate the Heated Seat Switch in both positions several times.
4. With the scan tool, read DTCs.

Is DTC B1098-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN active?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Verify seat harness is routed correctly. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals. Attempt to reproduce condition by adjusting the seat.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK FOR OPEN SEAT HEATER ELEMENTS




1. Turn the ignition off.
2. Disconnect the Passenger Cushion Pad Heater connector.

NOTE: Check connectors - Clean and repair as necessary.

3. Measure the total resistance of the Cushion Pad and Seat Back Heater Elements between the (P188) Passenger Seat Heater B(+) Driver circuit and the (Z971) Ground circuit at the Passenger Cushion Pad Heater connector (seat side).

Is the total resistance 3.5 Ohms + or - 0.5 Ohms?

Yes

- Go To 3

No

- Go To 5

3. CHECK (Z971) GROUND CIRCUIT FOR AN OPEN




1. Measure the resistance of the (Z971) Ground circuit between ground and the Passenger Cushion Pad Heater connector (harness side).

Is the resistance below 5.0 Ohms?

Yes

- Go To 4

No

- Repair the (Z971) Ground circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK (P188) PASSENGER SEAT HEATER B(+) DRIVER CIRCUIT FOR AN OPEN IN BODY HARNESS




1. Disconnect the HSM connector.

NOTE: Check connectors - Clean and repair as necessary.

2. Measure the resistance of the (P188) Passenger Seat Heater B(+) Driver circuit between the Passenger Cushion Pad connector (harness side) and the HSM connector.

Is the resistance below 5.0 Ohms?

Yes

- Replace the Heated Seat Module (HSM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (P188) Passenger Seat Heater B(+) Driver circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

5. CHECK FOR AN OPEN PASSENGER SEAT BACK HEATER ELEMENT




1. Disconnect the Passenger Seat Back Heater connector.

NOTE: Check connectors - Clean and repair as necessary.

2. Measure the resistance of the Passenger Seat Back Heater Element between the (P188) Passenger Seat Heater B(+) Driver circuit and the (Z971) Ground circuit at the Passenger Seat Back Heater connector.

Is the resistance above 10.0 Ohms?

Yes

- Replace the Passenger Seat Back Heater Element.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Passenger Cushion Pad Heater Element.
- Perform the BODY VERIFICATION TEST. Body Verification Test.