GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lamps System Check?

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Go to Step  2

Go to Interior Lamps System Check

2

  1. Disconnect the multi-function alarm module harness connectors.
  2. Open the inoperative door.
  3. Use the J 39200 Digital Multimeter (DMM) in order to measure the voltage between the appropriate multi-function alarm module connector terminals:
  4. • Driver door inoperative - connector C2 terminal D and connector C1 terminal H
    • Passenger door inoperative - connector C2 terminal D and connector C1 terminal G

Does the voltage equal the specified value?

B+

Go to Step  3

Go to Step  4

3

  1. Close the inoperative door.
  2. Use the J 39200 DMM in order to measure the voltage between the appropriate multi-function alarm module connector terminals:
  3. • Driver door inoperative - connector C2 terminal D and connector C1 terminal H
    • Passenger door inoperative - connector C2 terminal D and connector C1 terminal G

Does the voltage equal the specified value?

B+

Go to Step  5

Go to Step  6

4

  1. Reconnect the multi-function alarm module harness connectors.
  2. Use the J 39200 DMM in order to measure the voltage between the multi-function alarm module connector and ground:
  3. • Driver door - terminal H of connector C1
    • Passenger door - terminal G of connector C1

Does the voltage equal the specified value?

B+

Go to Step  7

Go to Step  9

5

  1. Backprobe the multi-function alarm module between terminal F of connector C2 and ground.
  2. Measure the voltage.

Does the voltage equal the specified value?

B+

Go to Step  8

Go to Step  9

6

  1. Backprobe the inoperative door jamb switch between terminal A and ground.
  2. Use the J 39200 DMM in order to measure the voltage.

Does the voltage equal the specified value?

B+

Go to Step  10

Go to Step  16

7

  1. Backprobe the inoperative door jamb switch between terminal A and ground.
  2. Use the J 39200 DMM in order to measure the voltage.

Does the voltage equal the specified value?

B+

Go to Step  11

Go to Step  12

8

  1. Backprobe the dome lamp between terminal A (uplevel) of terminal B (base and sunroof) and ground.
  2. Use the J 39200 DMM in order to measure the voltage.

Does the voltage equal the specified value?

B+

Go to Step  13

Go to Step  14

9

Replace the multi-function alarm module.

Did you complete the repair?

--

Go to Interior Lamps System Check

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10

Repair a short to ground in the appropriate CKT between the inoperative door jamb switch and the multi-function alarm module:

    • Driver door - CKT 394
    • Passenger door - CKT 395

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Interior Lamps System Check

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11

  1. Backprobe the inoperative door jamb switch between terminal B and ground.
  2. Use the J 39200 DMM in order to measure the voltage.

Does the voltage equal the specified value?

B+

Go to Step  15

Go to Step  16

12

Repair an open in the appropriate CKT between the inoperative door jamb switch and the multi-function alarm module:

    • Driver door - CKT 394
    • Passenger door - CKT 395

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Interior Lamps System Check

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13

Repair the open in CKT 156, between the dome lamp and the multi-function alarm module. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Interior Lamps System Check

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14

Repair the open in CKT 1732, between the multi-function alarm module and the dome lamp. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Interior Lamps System Check

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15

Repair an open in the appropriate CKT between the inoperative door jamb switch and ground:

    • Driver door - CKT 150
    • Passenger door - CKT 250

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Interior Lamps System Check

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16

Replace the inoperative door jamb switch.

Did you complete the repair?

--

Go to Interior Lamps System Check

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