Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Starting and Charging Schematics | |||
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 | Is the security indicator flashing? | Go to Step 4 | |
4 |
Does the scan tool display Yes? | Go to Step 5 | Go to Power Mode Mismatch |
5 |
Does the scan tool display Yes? | Go to Step 7 | Go to Step 6 |
6 |
Does the scan tool display Park or Neutral? | Go to Step 7 | |
7 | Turn the ignition switch to the START position. Do you hear the PCM CNTRL relay click? | Go to Step 10 | Go to Step 8 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 18 |
9 |
Does the test lamp illuminate? | Go to Step 15 | Go to Step 14 |
10 |
Does the test lamp illuminate? | Go to Step 11 | Go to Step 19 |
11 |
Important: Ensure the parking brake is applied and the transmission is in park if equipped with an automatic transmission or neutral on a manual transmission. Connect a 30-amp fused jumper between the battery positive voltage circuit of the PCM CNTRL relay switch and the starter solenoid crank voltage circuit. Does the engine crank? | Go to Step 16 | Go to Step 12 |
12 | Does the fuse in the jumper open? | Go to Step 20 | Go to Step 13 |
13 | Test the starter solenoid crank voltage circuit for a high resistance or open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 16 |
14 | Test the control circuit of the PCM CNTRL 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 24 | Go to Step 17 |
15 | Inspect for poor connections at the PCM CNTRL relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 21 |
16 | 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 24 | Go to Step 22 |
17 | Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 23 |
18 | Repair an open or high resistance in the battery positive voltage circuit of the PCM CNTRL relay coil. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
19 | Repair the open or high resistance in the battery positive voltage circuit of the PCM CNTRL relay switch. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
20 | Repair the short to ground in the starter solenoid crank voltage circuit. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
21 | Replace the PCM CNTRL relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 24 | -- |
22 | Replace the starter motor. Refer to Starter Motor Replacement . Did you complete the replacement? | Go to Step 24 | -- |
23 | Replace the PCM. Refer to Control Module References for replacement, setup, and programming. Did you compete the replacement? | Go to Step 24 | -- |
24 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
