GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Power Folding Top System Check performed?

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Go to Step 2

Go to Power Folding Top System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Use a test light in order to backprobe between folding top switch connector terminal F and ground.

Does the test light illuminate?

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Go to Step 3

Go to Step 4

3

Use a test light in order to backprobe between folding top switch connector terminal A and B+.

Does the test light illuminate?

--

Go to Step 5

Go to Step 6

4

Repair the open in circuit 341, between the folding top switch connector terminal F and S253.

Is the repair complete?

--

Go to Step 13

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5

  1. Use a test light in order to backprobe between folding top switch connector terminal E and ground.
  2. While observing the test light, press the folding top switch to the UP position.

Does the test light illuminate?

--

Go to Step 7

Go to Step 9

6

Use a test light in order to backprobe between folding top switch connector terminal D and B+.

Does the test light illuminate?

--

Go to Step 9

Go to Step 10

7

  1. Disconnect the folding top pump assembly connector.
  2. Connect a test light between convertible folding top pump assembly connector terminal B (the instrument panel harness side) and ground.
  3. While observing the test light, press the folding top switch to the DOWN position.

Does the test light illuminate?

--

Go to Step 8

Go to Step 11

8

  1. Connect a test light between folding top pump assembly connector terminal A (on the instrument panel harness side) and ground.
  2. While observing the test light, press the folding top switch to the UP position.

Does the test light illuminate?

--

Go to Step 12

Go to Step 14

9

  1. Test for a poor connection at folding top switch connector terminal.
  2. If the connection is OK, replace the folding top switch.

Is the repair complete?

--

Go to Step 13

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10

Repair a poor connection or an open in circuit 1350.

Is the repair complete?

--

Go to Step 13

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11

Repair an open or a short to ground in circuit 163, between the folding top switch and the folding top pump assembly.

Is the repair complete?

--

Go to Step 13

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12

  1. Test for a poor connection at the folding top pump assembly.
  2. If the connection is OK, replace the folding top pump assembly. Refer to Power Folding Top Pump with Motor Replacement

Is the repair complete?

--

Go to Step 13

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13

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors/components removed.

Have all the repairs been made?

--

Go to Power Folding Top System Check

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14

Repair an open or a short to the ground in circuit 162, between the folding top switch and the folding top pump assembly.

Is the repair complete?

--

Go to Step 13

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