Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Starting and Charging Schematics Connector End View Reference: Master Electrical Component List | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Turn the ignition switch to the start position. Does the engine crank? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the scan tool display Yes? | Go to Step 5 | Go to Step 4 |
4 |
Does the scan tool display Park/Neutral? | Go to Step 13 | |
5 | Turn the ignition switch to the start position. Did the starter relay click? | Go to Step 8 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 18 |
7 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 12 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 19 |
9 |
Important: The engine may crank in this next step. Connect a 30-amp fused jumper between the battery positive voltage circuit of the starter relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank? | Go to Step 14 | Go to Step 10 |
10 | Does the fuse in the jumper open? | Go to Step 20 | Go to Step 11 |
11 | Test the supply voltage circuit of the starter solenoid for a high resistance or open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 15 |
12 | Test the control circuit of the starter relay for an open or short to battery voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 17 |
13 | Test the crank request signal circuit of the engine control module (ECM) for a high resistance or open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 16 |
14 | Inspect for poor connections at the starter relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 21 |
15 | Inspect for poor connections at the starter solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 22 |
16 | Inspect for poor connections at the ignition switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 23 |
17 | Inspect for poor connections at the harness connector of the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 25 | Go to Step 24 |
18 | Repair an open or high resistance in the battery positive voltage circuit of the starter relay coil. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 25 | -- |
19 | Repair the open or high resistance in the battery positive voltage circuit of the starter relay switch. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 25 | -- |
20 | Repair the short to ground in the supply voltage circuit of the starter solenoid. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 25 | -- |
21 | Replace the starter relay. Did you complete the replacement? | Go to Step 25 | -- |
22 | Replace the starter motor. Refer to Starter Motor Replacement . Did you complete the replacement? | Go to Step 25 | -- |
23 | Replace the ignition switch. Refer to Ignition and Start Switch Replacement . Did you complete the replacement? | Go to Step 25 | -- |
24 | Replace the ECM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 25 | -- |
25 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
