Was the Power Sunroof System Check performed?

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Go to Step 2

Go to Power Sunroof System Check

1. Turn the ignition switch to the ON position.
2. Operate the left power window.

Does the left power window operate?

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Go to Step 8

Go to Step 6

1. Remove the sunroof switch from the headliner and leave the sunroof switch harness connector connected.
2. Using a J 39200 digital multimeter (DMM), measure the voltage by backprobing between the sunroof switch connector terminal B and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 4

Go to Step 22

Using a J 39200 DMM, measure the voltage by backprobing between the sunroof switch harness connector terminal C and ground.

Is the voltage measured within the specified range?

(Note: if the J 39200 DMM displays B+, then go to step 39).

4.5-5.5 V

Go to Step 5

Go to Step 26

Using a J 39200 DMM, measure the voltage by backprobing between the sunroof switch harness connector terminals B and F.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 10

Go to Step 28

Check the PWR WINDOWS PWR SUNROOF circuit breaker located in the fuse block.

Is the PWR WINDOWS PWR SUNROOF circuit breaker open?

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Go to Step 7

Go to Step 8

Repair short to ground in circuit 143.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Using a test light, backprobe between C398 terminal A and ground.

Does the test light illuminate?

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Go to Step 9

Go to Step 30

1. Turn the ignition switch to the OFF position.
2. Disconnect the sunroof module electrical connector C2.
3. Turn the ignition switch to the ON position.
4. Using a test light and a J 35616 kit, connect between the sunroof module harness connector C2 terminals B and D.

Does the test light illuminate?

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Go to Step 3

Go to Step 31

1. Using a test light, backprobe between the sunroof module harness connector C2 terminal A and ground.
2. While observing the test light, press and hold close on the sunroof switch.

Does the test light illuminate?

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Go to Step 11

Go to Step 25

1. Using a test light, backprobe between the sunroof module harness connector C2 terminal C and ground.
2. While observing the test light, press and hold OPEN on the sunroof switch.

Does the test light illuminate?

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Go to Step 14

Go to Step 25

1. Turn the ignition switch to the OFF position.
2. Disconnect the sunroof actuator connector C3.
3. Connect a test light between the sunroof actuator harness connector C3 terminals 1 and 2.
4. While observing the test light, press and hold CLOSE on the sunroof switch.

Does the test light illuminate?

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Go to Step 13

Go to Step 32

1. Leave the test light connected (from previous step).
2. While observing the test light, press and hold OPEN on the sunroof switch.

Does the test light illuminate?

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Go to Step 21

Go to Step 32

1. Turn the ignition switch to the OFF position.
2. Reconnect the sunroof module.
3. Turn the ignition switch to the ON position.
4. Using a J 39200 DMM, measure the voltage by backprobing between the limit switch module harness connector C4 terminal 1 and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 16

Go to Step 15

Is the voltage measured to the specified value?

B+

Go to Step 40

Go to Step 33

Using a J 39200 DMM, measure the voltage by backprobing between the limit switch module harness connector C4 terminal 3 and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 18

Go to Step 17

Is the voltage measured to the specified value?

B+

Go to Step 40

Go to Step 35

Using a J 39200 DMM, measure the voltage by backprobing between the limit switch module harness connector C4 terminal 4 and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 20

Go to Step 19

Is the voltage measured to the specified value?

B+

Go to Step 40

Go to Step 37

Using a J 39200 DMM, measure the voltage by backprobing between the limit switch module harness connector C4 terminals 2 and 4.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 12

Go to Step 39

Replace the sunroof actuator. Refer to Sunroof Actuator Replacement .

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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1. Disconnect the sunroof switch electrical connector.
2. Using a J 39200 DMM and a J 35616 kit, measure the voltage between the sunroof switch harness connector terminal B and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 24

Go to Step 23

Check for an open or short to ground in circuit 100.

Did you find an open or a short to ground in circuit 100?

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Go to Step 41

Go to Step 25

Replace the sunroof switch. Refer to Sunroof Switch Replacement for service procedure.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Replace the sunroof module. Refer to Power Sunroof Module Replacement .

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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1. Disconnect the sunroof switch electrical connector.
2. Using a J 39200 DMM and a J 35616 kit, measure the voltage between the sunroof switch harness connector terminal C and ground.

Is the measured voltage within the specified range?

4.5-5.5 V

Go to Step 24

Go to Step 27

Repair the open or short to ground in circuit 110.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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1. Turn the ignition switch to the OFF position.
2. Disconnect the sunroof switch electrical connector.
3. Disconnect the sunroof module electrical connector C1.
4. Using a J 39200 DMM, measure the resistance between the sunroof switch harness connector terminal F and the sunroof module harness connector C1 terminal 3.

Is the measured resistance less than the specified value?

2ohms

Go to Step 25

Go to Step 29

Repair the poor connection or an open in circuit 128.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair the poor connection or an open in circuit 143.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair the poor connection or open in circuit 850.

Is the repair complete and did you retest the system?

--

Go to Power Sunroof System Check

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Repair poor connection or open in circuit 127 or circuit 129.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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1. Disconnect the limit switch module electrical connector C4.
2. Using a J 39200 DMM and a J 35616 kit, measure the voltage between the limit switch module harness connector C4 terminal 1 and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 35

Go to Step 34

Locate open or short to ground in the BLK wire between the sunroof module harness connector C1 terminal 6 and the limit switch module harness connector C4 terminal 1.

Did you detect an open or short to ground in the BLK wire?

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Go to Step 42

Go to Step 25

1. Disconnect the limit switch module harness connector C4.
2. Using a J 39200 DMM and a J 35616 kit, measure the voltage between the limit switch module harness connector C4 terminal 3 and ground.

Is the voltage measured within the specified range?

4.5-5.5 V

Go to Step 25

Go to Step 36

Locate open or short to ground in WHT wire between the sunroof module harness connector C1 terminal 8 and the limit switch module harness connector C4 terminal 3.

Did you detect an open or short to ground in the WHT wire?

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Go to Step 43

Go to Step 25

1. Disconnect the limit switch module harness connector C4.
2. Using a J 39200 DMM and a J 35616 kit, measure the voltage between the limit switch module harness connector C4 terminal 4 and ground.

Is the voltage measured within the specified range?

5.5-6.5 V

Go to Step 25

Go to Step 38

Locate open or short to ground in the RED wire between the sunroof module harness connector C1 terminal 7 and the limit switch module harness connector C4 terminal 4.

Did you detect an open or short to ground in the RED wire?

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Go to Step 44

Go to Step 25

Locate open in the BLK/WHT wire between the sunroof module harness connector C1 terminal 1 and the limit switch module harness connector C4 terminal 2.

Did you detect an open in the BLK/WHT wire?

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Go to Step 45

Go to Step 25

Repair the short to B+.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair the open or short to ground in circuit 100.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair open or short to ground in the BLK wire between the sunroof module harness connector C1 terminal 6 and the limit switch module harness connector C4 terminal 1.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair open or short to ground in the WHT wire between the sunroof module harness connector C1 terminal 8 and the limit switch module harness connector C4 terminal 3.

Is the repair complete and did you retest the system?

--

Go to Power Sunroof System Check

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Repair open or short to ground in the RED wire between the sunroof module harness connector C1 terminal 7 and the limit switch module harness connector C4 terminal 4.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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Repair the open in the BLK/WHT wire between the sunroof module harness connector C1 terminal 1 and the limit switch module harness connector C4 terminal 2.

Is the repair complete and did you retest the system?

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Go to Power Sunroof System Check

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