GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: Ensure that the battery is in a charged state in order to avoid misdiagnosis.

1

Inspect the ignition (IGN) MAIN 1 MaxiFuse.

Is there an open in the ignition (IGN) MAIN MaxiFuse?

--

Go to Step 2

Go to Step 3

2

Repair the short to ground in CKT 42.

Is the repair complete?

--

Go to Starting System Check

--

3

  1. Set the gear selector to the PARK position.
  2. Turn and hold the ignition switch to the START position.
  3. Measure the voltage from the starter solenoid terminal S to ground.

Is the voltage equal to the specified value?

0-9.5V

Go to Step 4

Go to Step 9

4

  1. Disconnect the transaxle range switch.
  2. Turn the ignition switch to the START position.
  3. Measure the voltage from the transaxle range switch connector C1 terminal G to ground.

Is the voltage equal to the specified value?

0-9.5V

Go to Step 5

Go to Step 12

5

  1. Backprobe between C201 terminal D5 to ground.
  2. Measure the voltage.

Is the voltage equal to the specified value?

0-9.5V

Go to Step 6

Go to Step 15

6

Inspect for a poor connection or an open in CKT 42.

Is there a poor connection or an open in CKT 42?

--

Go to Step 7

Go to Step 8

7

Repair the poor connection or the open in CKT 42.

Is the repair complete?

--

Go to Starting System Check

--

8

Replace the underhood Accessory wiring junction block.Relay/Fuse Center Replacement

Is the repair complete?

--

Go to Starting System Check

--

9

Connect a remote starter switch between the starter solenoid terminal S and the positive terminal of the battery.

Does the solenoid click?

--

Go to Step 10

Go to Step 11

10

Inspect for a poor connection or an open in CKT 1.

Is there a poor connection or an open in CKT 1?

--

Go to Step 18

Go to Step 11

11

Replace the starter. Refer to Starter Motor Replacement .

Is the repair complete?

--

Go to Starting System Check

--

12

Inspect for an open or for high resistance in CKT 6.

Is there an open or high resistance in CKT 6?

--

Go to Step 13

Go to Step 14

13

Repair the poor connection or the open in CKT 6.

Is the repair complete?

--

Go to Starting System Check

--

14

Replace or adjust the transaxle range switch. Refer to PNP Switch Replacement or to PNP Switch Adjustment in Automatic Transaxle.

Is the repair complete?

--

Go to Starting System Check

--

15

Inspect CKT 5 for high resistance, a poor connection, or an open.

Is there high resistance, a poor connection or an open in CKT 5?

--

Go to Step 16

Go to Step 17

16

Repair the poor connection or open in CKT 5.

Is the repair complete?

--

Go to Starting System Check

--

17

Replace the ignition switch. Refer to IGN and Key Alarm Switch Assembly (asm)Ignition Switch Replacement - On Vehicle

Is the repair complete?

--

Go to Starting System Check

--

18

Repair the poor connection or the open in CKT 1.

Is the repair complete?

--

Go to Starting System Check

--