GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Place the gear selector in Park (automatic transmission) or depress the clutch pedal (manual transmission).
  2. Turn the ignition switch to the START position.
  3. Measure the voltage between the starter solenoid terminal S and ground.

Is battery voltage measured?

--

Go to Step 8

Go to Step 2

2

  1. Disconnect the transaxle range switch connector (automatic transmission) or disconnect the clutch pedal position switch (manual transmission).
  2. Measure the voltage between the transaxle range switch connector C2 terminal G and ground (automatic transmission).
  3. Measure the voltage between the clutch pedal position switch connector terminal A and ground (manual transmission).
  4. Turn the ignition switch to the START position.

Is battery voltage measured?

--

Go to Step 3

Go to Step 5

3

  1. Connect the fused jumper across the transaxle range switch connector C2 from terminal G of connector C2 to terminal E (automatic transmission) or across the clutch pedal position switch terminal A and B (manual transmission).
  2. Turn the ignition switch to START position.

Does the engine crank?

--

Go to Step 4

Go to Step 11

4

  1. Check the transaxle range switch adjustment (automatic transmission) or the clutch pedal position switch adjustment (manual transmission).
  2. If OK, replace the transaxle range switch or the clutch pedal position switch.

Is the repair complete?

--

System OK

--

5

  1. Disconnect the ignition switch connector C2.
  2. Measure the voltage between connector C2 terminal C and ground.

Is battery voltage measured?

--

Go to Step 6

Go to Step 12

6

  1. Reconnect the ignition switch connector C2.
  2. Turn the ignition switch to the START position.
  3. Backprobe ignition switch connector C1 and measure voltage with a DMM between terminal C and ground.

Is battery voltage measured?

--

Go to Step 13

Go to Step 7

7

Replace the ignition switch. Refer to Ignition Switch Replacement.

Is the repair complete?

--

System OK

--

8

  1. Place the gear selector in PARK (automatic transmission) or depress the clutch pedal (manual transmission).
  2. Turn the ignition switch to the START position.
  3. Measure the voltage between the starter solenoid terminal S and the starter motor mounting bolts.

Is battery voltage measured?

--

Go to Step 10

Go to Step 9

9

  1. Clean the starter motor mounting bolts in order to create a good ground to the engine block.
  2. Inspect for rust, dirt or excess paint.

Is the repair complete?

--

System OK

--

10

Replace the starter solenoid. Refer to Starter Solenoid Replacement .

Is the repair complete?

--

System OK

--

11

Repair the open in circuit 6 between transaxle range switch or clutch pedal position switch and starter solenoid.

Is the repair complete?

--

System OK

--

12

Repair open in the IGN Fuse or CKT 242 between fuse block and ignition switch.

Is the repair complete?

--

System OK

--

13

Repair the open in circuit 5 between ignition switch and transaxle range switch or clutch pedal position switch.

Is the repair complete?

--

System OK

--