GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

    Important: The battery must be in a charged state to avoid misdiagnosis.

  1. Turn the ignition switch to START.
  2. Use a DVM in order to measure the voltage from the battery positive terminal to the starter solenoid switch terminal B.

Is the voltage less than specifications?

0.5 V

Go to Step 2

Go to Step 4

2

  1. Turn the ignition switch to START.
  2. Use a DVM in order to measure the voltage from the battery negative terminal to G100.

Is the voltage less than specifications?

0.5 V

Go to Step 3

Go to Step 5

3

Replace the starter solenoid switch.

Is the repair complete?

--

System OK

--

4

Replace the battery positive cable.

Is the repair complete?

--

System OK

--

5

Replace the battery negative cable.

Is the repair complete?

--

System OK

--