Step | Action | Yes | No |
---|---|---|---|
SCHEMATIC REFERENCE: Starting and Charging Schematics | |||
1 | Did you perform the Diagnostic System Check for starting and charging? | Go to Step 2 | |
2 | Turn the ignition to the START position. Does the engine crank? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | 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 Yes? | Go to Step 12 | Go to Step 13 |
5 | Turn the ignition to the START position. Does the CRANK relay click? | Go to Step 8 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 14 |
7 |
Does the test lamp illuminate? | Go to Step 18 | Go to Step 15 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 22 |
9 | Connect a 30 amp fused jumper between the battery positive voltage circuit of the START relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank? | Go to Step 18 | Go to Step 10 |
10 |
Does the engine crank? | Go to Step 17 | Go to Step 11 |
11 | Does the fuse in either jumper open? | Go to Step 23 | Go to Step 16 |
12 | Test the crank request signal circuit of the PCM for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 29 | Go to Step 19 |
13 | Test the crank signal circuit of the IPC for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 29 | Go to Step 20 |
14 | Test the battery positive voltage circuit of the CRANK relay coil for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 29 | Go to Step 20 |
15 | Test the control circuit of the CRANK relay for an open, high resistance or short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 29 | Go to Step 19 |
16 | Test the supply voltage circuit of the starter solenoid for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 29 | Go to Step 21 |
17 |
Did you find and correct the condition? | Go to Step 29 | Go to Step 24 |
18 | Inspect for poor connections at the CRANK 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 29 | Go to Step 25 |
19 | Inspect for poor connection at the PCM harness connector. 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 29 | Go to Step 26 |
20 | Inspect for poor connections at the ignition switch harness connector. 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 29 | Go to Step 27 |
21 | 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 29 | Go to Step 28 |
22 | Repair the open or high resistance in the battery positive voltage circuit of the CRANK relay switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 29 | -- |
23 | Repair the high resistance or short to ground in the supply voltage circuit of the starter solenoid. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 29 | -- |
24 | Replace the PNP switch. Refer to Park/Neutral Position Switch Replacement in Automatic Transaxle - 4T65 - E. Did you complete the replacement? | Go to Step 29 | -- |
25 | Replace the crank relay. Did you complete the replacement? | Go to Step 29 | -- |
26 |
IMPORTANT:: Perform the set up procedures for the PCM. Replace the PCM. Refer to Powertrain Control Module Replacement/Programming in Engine Controls - 2.5L (LB8) and 3.0L (L46). Did you complete the replacement? | Go to Step 29 | -- |
27 | Replace the Ignition Switch. Refer to Ignition Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt. Did you complete the replacement? | Go to Step 29 | -- |
28 | Replace the Starter Motor. Refer to Starter Motor Replacement . Did you complete the replacement? | Go to Step 29 | -- |
29 | Operate the system for which the symptom occurred. Did you correct the condition? | System OK | Go to Step 2 |