Did you perform the Diagnostic System Check - Starting and Charging?

Go to Step 2

Go to Diagnostic System Check - Engine Electrical

Turn the ignition switch to the START position.

Does the engine crank?

Go to Symptoms - Engine Electrical

Go to Step 3

Turn the ignition switch to the START position.

Does the STARTER relay click?

Go to Step 4

Go to Step 7

1. Turn OFF the ignition.
2. Disconnect the STARTER relay.
3. Connect a test lamp between the battery positive voltage circuit of the STARTER relay switch circuit and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 13

Connect a 30 amp fused jumper between the battery positive voltage circuit of the STARTER relay switch circuit and the crank voltage circuit of the starter solenoid.

Does the engine crank?

Go to Step 10

Go to Step 6

Does the fuse in the jumper open?

Go to Step 14

Go to Step 8

1. Turn OFF the ignition.
2. Disconnect the STARTER relay.
3. Connect a test lamp between the crank signal circuit of the STARTER relay coil and the ground circuit of the START relay.
4. Turn the ignition to the CRANK position.

Does the test lamp illuminate?

Go to Step 16

Go to Step 9

1. Disconnect the crank voltage circuit of the starter solenoid.
2. Connect a test lamp between crank voltage circuit of the starter solenoid and a good ground.
3. Connect a 30 amp fused jumper between the battery positive voltage circuit of the STARTER relay switch circuit and the crank voltage circuit of the starter solenoid.

Does the test lamp illuminate?

Go to Step 11

Go to Step 15

Test the crank input circuit of the STARTER relay for an open, high resistance or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition.

Go to Step 18

Go to Step 12

Inspect for poor connections at the STARTER relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 16

Inspect for poor connections at the starter solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 17

Repair an open or high resistance in the ground circuit of the STARTER relay coil. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 18

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Repair an open, high resistance or short to ground in the battery positive voltage circuit of the STARTER relay switch circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 18

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Repair a short to ground in the crank voltage circuit of the starter solenoid. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 18

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Repair an open or high resistance in the crank voltage circuit of the starter solenoid. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 18

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Replace the STARTER relay.

Did you complete the replacement?

Go to Step 18

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Replace the Starter Motor. Refer to Starter Motor Replacement .

Did you complete the replacement?

Go to Step 18

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

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