Was the entire Heated Seats System Check performed?

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Go to Step 2

Go to Heated Seats System Check

1. Disconnect the rear heated seat module connector C1.
2. Backprobe the rear heated seat module connector C1 with a DMM from cavity B (ORN) to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 16

Backprobe the rear heated seat module connector C1 with a DMM from cavity B (ORN) to cavity E (BLK).

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 20

1. Turn the ignition switch to the ON position.
2. Backprobe the rear heated seat module connector C1 with a DMM from cavity A, CKT 41 (BRN) to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 5

Go to Step 21

1. Connect a scan tool to the data link connector (DLC).
2. Select INPUTS from the driver door module (DDM) DATA LIST.
3. Press the suspect rear heated seat switch.

Does the scan tool indicate that the suspect switch is ON when pressed and OFF when not pressed?

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Go to Step 10

Go to Step 6

1. Turn the ignition switch to the OFF position .
2. Disconnect the rear door module connector C1.
3. Connect a DMM from the rear door module connector C1 cavity 14 (BRN) to cavity 10 (TAN/WHT) (LH) or (BLK/WHT) (RH).
4. Press the rear heated seat switch.

Is the resistance less than the specified value?

5 ohms

Go to Step 39

Go to Step 7

1. Disconnect the rear heated seat switch connector.
2. Connect a DMM from the rear door module connector C1 cavity 14 (BRN) to the rear heated seat switch connector cavity C (BRN).

Is the resistance less than the specified value?

5 ohms

Go to Step 8

Go to Step 22

Connect a DMM from the rear heated seat switch connector cavity D (TAN/WHT) to the rear door module connector cavity 10 (TAN/WHT) (LH) or (BLK/WHT) (RH).

Is the resistance less than the specified value?

5 ohms

Go to Step 23

Go to Step 9

Repair the open in CKT 551 (TAN/WHT) (LH) or CKT 451 (TAN/WHT) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

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Go to Heated Seats System Check

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1. Disconnect the rear heated seat module connector C1.
2. Connect a DMM from battery positive voltage (B+) to the rear heated seat module connector C1 cavity C (PNK) (LH) or (BRN) (RH).
3. Press the rear heated seat switch.

Is the voltage within the specified range?

10-15 V

Go to Step 12

Go to Step 11

1. Disconnect the rear integration module (RIM) connector C1.
2. Connect a DMM from the rear heated seat module connector C1 cavity C (PNK) (LH) or (BRN) (RH) to the RIM connector C1 cavity A5 (LT GRN) (LH) or cavity A6 (GRY) (RH).

Is the measured resistance less than the specified value?

5 ohms

Go to Step 40

Go to Step 24

1. Disconnect the rear heated seat module connector C2.
2. Disconnect the rear heated seat module connector C3.
3. Connect a DMM from the rear heated seat module connector C3 cavity A to cavity B.

Is the resistance within the specified range?

1.5-10 ohms

Go to Step 13

Go to Step 25

Connect a DMM from the rear heated seat module connector C2 cavity A (GRY) (LH) or (DK GRN) (RH) to cavity B (BRN) (LH) or (LT GRN) (RH).

Is the resistance within the specified value?

1.5-10 ohms

Go to Step 14

Go to Step 26

Connect a DMM from the rear heated seat module connector C2 cavity C (LT BLU) (LH) or (ORN) (RH) to cavity D (DK BLU) (LH) or (PNK) (RH).

Important: If the resistance is measured with the seat still warm, the resistance may vary outside of the specified range since the thermistor resistance varies with temperature.

Is the resistance within the specified range?

850 - 1150 ohms

Go to Step 15

Go to Step 29

Replace the rear heated seat module. Refer to Rear Seat Back Replacement .

Is the rear heated seat module replacement complete?

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Go to Heated Seats System Check

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Check HTDSTLR Fuse (LH) or HTDSTRR Fuse (RH) for an open.

Is HTDSTLR Fuse (LH) or HTDSTRR Fuse (RH) OK?

--

Go to Step 19

Go to Step 17

Repair the short to ground in CKT 2640 (ORN) (LH) or CKT 2740 (ORN) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 18

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Replace HTDSTLR Fuse (LH) or HTDSTRR Fuse (RH).

Is the fuse replacement complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 2640 (ORN) (LH) or CKT 2740 (ORN) (RH) between the rear fuse block and the rear heated seat module. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open or short to ground in CKT 750 (BLK) between the rear heated seat module and the rear fuse block. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 41 (BRN) between S310 and the rear heated seat module. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 1637 (BRN) (LH) or CKT 1634 (BRN) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Replace the rear heated seat switch. Refer to Door Trim Panel Replacement in Doors.

Is the rear heated seat switch replacement complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 1617 (PNK and LT GRN) (LH) or CKT 1629 (BRN and GRY) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Replace the rear heated seat back. Refer to Rear Seat Back Cushion Cover and Pad Replacement .

Is the rear heated seat back replacement complete?

--

Go to Heated Seats System Check

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1. Disconnect the rear heated seat cushion connector.
2. Connect a DMM from the rear heated seat module connector C2 cavity A (GRY) (LH) or (DK GRN) (RH) to ground.

Is the resistance less than the specified value?

5 ohms

Go to Step 33

Go to Step 27

Connect a DMM from the rear heated seat module connector C2 cavity A (GRY) (LH) or (DK GRN) (RH) to the rear heated seat cushion connector cavity A (GRY) (LH) or (DK GRN) (RH).

Is the resistance less than the specified value?

5 ohms

Go to Step 28

Go to Step 34

Connect a DMM from the rear heated seat module connector C2 cavity B (BRN) (LH) or (LT GRN) (RH) to the rear heated seat cushion connector cavity B (BRN) (LH) or (LT GRN) (RH).

Is the resistance less than the specified value?

5 ohms

Go to Step 32

Go to Step 35

1. Disconnect the rear heated seat cushion connector.
2. Connect a DMM from the rear heated seat module connector C2 cavity C (LT BLU) (LH) or (ORN) (RH) to ground.

Is the resistance less than the specified value?

5 ohms

Go to Step 36

Go to Step 30

Connect a DMM from the rear heated seat module connector C2 cavity C (LT BLU) (LH) or (ORN) (RH) to the rear heated seat cushion connector cavity C (LT BLU) (LH) or (ORN) (RH).

Is the resistance less than the specified value?

5 ohms

Go to Step 31

Go to Step 37

Connect a DMM from the rear heated seat module connector C2 cavity D (DK BLU) (LH) or (PNK) (RH) to the rear heated seat cushion connector cavity D (DK BLU) (LH) or (PNK) (RH).

Is the resistance less than the specified value?

5 ohms

Go to Step 32

Go to Step 38

Replace the rear heated seat cushion. Refer to Rear Seat Cushion Cover and Pad Replacement .

Is the rear heated seat cushion replacement complete?

--

Go to Heated Seats System Check

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Repair the short to ground in CKT 2294 (GRY) (LH) or CKT 2296 (DK GRN) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 2294 (GRY) (LH) or CKT 2296 (DK GRN) (RH) between the rear heated seat module and the rear heated seat cushion. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 2295 (BRN) (LH) or CKT 2297 (LT GRN) (RH) between the rear heated seat module and the rear heated seat cushion. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the short to ground in CKT 2299 (LT BLU) (LH) or CKT 2300 (ORN) (RH). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 2299 (LT BLU) (LH) or CKT 2300 (ORN) (RH) between the rear heated seat module and the rear heated seat cushion. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Heated Seats System Check

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Repair the open in CKT 2298 (DK BLU) (LH) or CKT 2301 (PNK) (RH) between the rear heated seat module and the rear heated seat cushion. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

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Go to Heated Seats System Check

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Replace the rear door module. Refer to Door Control Module Replacement in Doors.

Is the rear door module replacement complete?

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Go to Heated Seats System Check

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Replace the rear integration module (RIM). Refer to Body Control Module Replacement in Body Control System.

Is the RIM replacement complete?

--

Go to Heated Seats System Check

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