GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

--

Go to Step 2

Go to Symptoms - Engine Electrical

2

Attempt to start the vehicle.

Does the starter solenoid click audibly?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Remove the starter relay from engine wiring harness junction block 2.
  2. Connect a test lamp between the starter relay terminal C6 and battery voltage. Refer to Circuit Testing in Wiring Systems.
  3. While observing the test lamp, turn the ignition switch to the START position.

Does the test lamp illuminate?

--

Go to Step 4

Go to Diagnostic System Check - Theft Deterrent

4

Connect a test lamp between the engine wiring harness junction block 2 terminal C4 and ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

--

Go to Step 5

Go to Step 6

5

  1. Connect a test lamp between the engine wiring harness junction block 2 terminal B4 and ground. Refer to Circuit Testing in Wiring Systems.
  2. Place the transmission in PARK or NEUTRAL (automatic) or press the clutch pedal (manual).
  3. While observing the test lamp, turn the ignition switch to the START position.

Does the test lamp illuminate?

--

Go to Step 7

Go to Step 8

6

Repair the open in circuit 2 between the engine wiring harness junction block and S183. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 18

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7

  1. Install the starter relay into the engine wiring harness junction block 2.
  2. Disconnect circuit 6 (the PPL wire) from the starter solenoid.
  3. Connect a test lamp between circuit 6 and ground. Refer to Circuit Testing in Wiring Systems.
  4. Place the transmission in PARK or NEUTRAL (automatic) or press the clutch pedal (manual).
  5. While observing the test lamp, turn the ignition switch to the START position.

Does the test lamp illuminate?

--

Go to Step 15

Go to Step 12

8

Test for and repair an open or a poor connection in circuit 1433 from the engine wiring harness junction block 2 terminal B4 to the transmission range switch terminal F (automatic) or the clutch pedal position switch terminal B (manual). Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems.

Did you find and repair an open or a poor connection?

--

Go to Step 18

Go to Step 9

9

Test for and repair a poor connection at the transmission range switch (automatic) or the clutch pedal position switch (manual). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 18

Go to Step 10

10

Test for and repair an open in circuit 1035 from the transmission range switch terminal E (automatic) or the clutch pedal position switch terminal A (manual) to C200D. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and repair an open?

--

Go to Step 18

Go to Step 11

11

Adjust or replace the transmission range switch (automatic) or the clutch pedal position switch. Refer to one of the following procedures:

    •  Park/Neutral Position Switch Adjustment in Automatic Transmission - 4L60-E
    •  Park/Neutral Position Switch Replacement in Automatic Transmission - 4L60-E

Did you complete the replacement or adjustment?

--

Go to Step 18

--

12

Test for and repair a poor connection at the starter relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 18

Go to Step 13

13

Test for and repair an open or a poor connection in circuit 6. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems.

Did you find and repair an open or a poor connection?

--

Go to Step 18

Go to Step 14

14

Replace the starter relay. Refer to Starter Motor Relay Replacement .

Did you complete the replacement?

--

Go to Step 18

--

15

Test for and repair a poor connection in circuit 1 at the positive battery terminal and the starter solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 18

Go to Step 16

16

Test for and repair an open in circuit 1. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and repair an open?

--

Go to Step 18

Go to Step 17

17

Replace the starter. Refer to Starter Motor Replacement .

Did you complete the replacement?

--

Go to Step 18

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18

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3