GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Starter System Check?

--

Go to Step 2

Go to Starting System Check

2

  1. Place the transmission in the PARK position (A/T) or actuate the clutch pedal (M/T).
  2. Turn the ignition switch to the START position.
  3. Measure the voltage between the starter solenoid terminal S to engine ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 14

Go to Step 3

3

  1. Remove the STARTER relay from the underhood fuse block.
  2. Test for voltage from the STARTER relay socket cavity 30 to ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 4

Go to Step 16

4

Test for voltage at the STARTER relay socket cavity 85 to ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 5

Go to Step 17

5

Test for voltage between the STARTER relay socket cavity 85 and cavity 86.

Is the voltage greater than the specified value?

9.5 V

Go to Step 6

Go to Step 18

6

  1. Place the transmission in the PARK position (A/T) or actuate the clutch pedal (M/T).
  2. Turn the ignition switch to the START position.
  3. Measure the voltage between the STARTER relay socket cavity 85 to ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 7

Go to Step 19

7

Is the vehicle equipped with a manual transmission?

--

Go to Step 8

Go to Step 10

8

  1. Disconnect the clutch pedal position switch connector.
  2. Turn the ignition switch to the START position.
  3. Measure the voltage from the clutch pedal position switch connector cavity A to ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 9

Go to Step 12

9

  1. Engage the park brake.
  2. Actuate the clutch pedal with the transmission in NEUTRAL.
  3. Connect a fused jumper between the manual transmission clutch starter switch connector cavity A and cavity C.
  4. Turn the ignition switch to the START position.

Does the engine crank?

--

Go to Step 20

Go to Step 22

10

  1. Disconnect the park/neutral position switch connector.
  2. Turn the ignition switch to the START position.
  3. Measure the voltage between the park/neutral position switch connector C1 cavity E and ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 11

Go to Step 12

11

  1. Connect a fused jumper between park/neutral position switch connector C1 cavity E and cavity G.
  2. Turn the ignition switch to the START position.

Does the engine crank?

--

Go to Step 23

Go to Step 24

12

  1. Turn the ignition switch to the START position.
  2. Measure the voltage from the ignition switch C211 cavity D1 to ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 25

Go to Step 13

13

Measure the voltage between the ignition switch C211 connector D5 and ground.

Is the voltage greater than the specified value?

9.5 V

Go to Step 28

Go to Step 29

14

  1. Clean the starter motor mounting surfaces and the bolts.
  2. Place the transmission in the PARK position (A/T) or actuate the clutch pedal (M/T).
  3. Turn the ignition switch to the START position.

Does the engine crank?

--

Go to Starting System Check

Go to Step 15

15

Replace the starter. Refer to Starter Motor Replacement the appropriate procedure:

Is the repair complete?

--

Go to Starting System Check

--

16

Repair the open in CKT 19 (RED) between the battery MaxiFuse® B stud and the STARTER relay.

Is the repair complete?

--

Go to Starting System Check

--

17

Repair the open in CKT 6 (PPL) between the STARTER relay and the starter solenoid.

Is the repair complete?

--

Go to Starting System Check

--

18

Repair the open in CKT 350 (BLK) between the STARTER relay and G102.

Is the repair complete?

--

Go to Starting System Check

--

19

Replace the STARTER relay.

Is the replacement complete?

--

Go to Starting System Check

--

20

  1. Adjust the manual transmission clutch starter switch.
  2. Engage the park brake.
  3. Actuate the clutch pedal with the transmission in NEUTRAL.
  4. Connect a fused jumper between the manual transmission clutch starter switch connector cavity A and cavity C.
  5. Turn the ignition switch to the START position.

Does the engine crank?

--

Go to Starting System Check

Go to Step 21

21

Replace the manual transmission clutch starter switch.

Is the repair complete?

--

Go to Starting System Check

--

22

Repair the open in CKT 1035 (PPL) between the manual transmission clutch start switch and the STARTER relay.

Is the repair complete?

--

Go to Starting System Check

--

23

Replace the park/neutral position switch. Refer to Park/Neutral Position Switch Replacement in Automatic Transmission.

Is the replacement complete?

--

Go to Starting System Check

--

24

Repair the open in CKT 1035 (PPL) between the park/neutral position switch and the STARTER relay.

Is the repair complete?

--

Go to Starting System Check

--

25

Inspect for an open in CKT 5 (YEL) between the ignition switch and the underhood fuse block.

Is an open present in CKT 5 (YEL)?

--

Go to Step 26

Go to Step 27

26

Repair the open in CKT 5 (YEL) between the ignition switch and the underhood fuse block.

Is the repair complete?

--

Go to Starting System Check

--

27

Repair the open in CKT 806 (PPL) between the underhood fuse block and the manual transmission clutch start switch (M/T) or the park/neutral position switch (A/T).

Is the repair complete?

--

Go to Starting System Check

--

28

Replace the ignition switch. Refer to Ignition Coil and Ignition Coil Module Replacement .

Is the repair complete?

--

Go to Starting System Check

--

29

Repair the open in CKT 740 (ORN) between the ignition switch and the underhood fuse block.

Is the repair complete?

--

Go to Starting System Check

--