GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition to START.
  2. Wait 15 seconds and measure the voltage at the battery while cranking the engine.

Is the reading greater than the specified value?

9.5 V

Go to Step 2

Go to Step 3

2

Measure the voltage between the B- terminal and the engine block while cranking the engine.

Is the reading greater than the specified value?

0.5 V

Go to Step 4

Go to Step 5

3

Load test the battery. Refer to Battery Electrical Drain/Parasitic Load Test .

Is the battery OK?

--

Go to Step 6

Go to Step 7

4

Replace the negative battery cable. Refer to Battery Cable .

Does the starter solenoid continue to click and the engine to crank slowly or not at all?

--

Go to Step 5

System OK

5

Measure the voltage between the B+ terminal and the starter solenoid terminal B while cranking the engine.

Is the reading greater than the specified value?

0.5 V

Go to Step 8

Go to Step 6

6

Repair or replace the starter motor. Refer to Starter Motor Replacement .

Does the starter solenoid continue to click and the engine to crank slowly or not at all?

--

Go to Step 7

System OK

7

Replace the battery. Refer to Battery Replacement .

Does the starter solenoid continue to click and the engine to crank slowly or not at all?

--

Go to Step 8

System OK

8

Replace the positive battery cable. Refer to Battery Cable .

Is the repair complete?

--

System OK

--