The following test is designed for engines and batteries at normal operating temperature and assumes that no engine symptoms exist which might cause a no-start symptom. The Battery must be in a charged state before doing the diagnosis. Using the test under other conditions could result in misdiagnosis.
Perform the On-Board Diagnostic System Check in order to be certain that no Diagnostic Trouble codes (DTCs) are stored in the VCM/PCM memory. Refer to Driveability and Emissions in Engine. DTCs stored in the VCM/PCM memory may lead to misdiagnosis.
Step | Test | Value | Yes | No |
|---|---|---|---|---|
1 |
Is the voltage reading greater than 9.6 volts after 15 seconds of cranking? | 9.6 Volts | ||
2 | Connect the voltmeter from the negative battery terminal to the engine block. Is the voltage reading greater than 0.5 Volts? | 0.5 Volts | ||
3 | Connect the voltmeter from the starter solenoid terminal B to BLK (1) wire battery negative. Is the voltage greater than 9.0 Volts? | 9.0 Volts | ||
4 | Perform a battery load test. Refer to Battery Load Test . Does the battery pass the load test? | -- | -- | |
5 | Repair the starter motor. Is the repair complete? | -- | System OK | -- |
6 | Replace the negative battery cable. Is the replacement complete? | -- | System OK | -- |
7 | Clean and Tighten the positive battery terminals and/or replace the positive battery cable. Is the replacement complete? | -- | System OK | -- |
