The Engine Cranks but Does Not Run diagnostic table is an organized approach to identifying a condition that causes an engine not to start. The Engine Cranks but Does Not Run diagnostic table directs the service technician to the appropriate system diagnosis.
The Engine Cranks but Does Not Run diagnostic table assumes the following:
• | The battery is completely charged. Refer to Battery Inspection/Test in Engine Electrical. |
• | The engine cranking speed is acceptable. Refer to Engine Cranks Slowly in Engine Electrical. |
• | There is adequate fuel in the fuel tank. |
The number below refers to the step number on the diagnostic table.
Step | Action | Value(s) | Yes | No | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check-Engine Controls? | -- | Go to Step 2 | |||||||||||||||||
2 |
Does the scan tool display DTC P0123, P0230, P0601, P0602, P1626, P1630, or P1631? | -- | Go to Step 3 | |||||||||||||||||
3 |
Does the test lamp illuminate on at least one side of each fuse? | -- | Go to Step 4 | Go to Ignition Relay Diagnosis | ||||||||||||||||
4 |
Does the engine RPM parameter display cranking RPM? | -- | Go to Step 5 | |||||||||||||||||
5 | Command the fuel pump ON with a scan tool. Does the fuel pump turn ON? | -- | Go to Step 6 | |||||||||||||||||
6 |
Does the spark tester spark? | -- | Go to Step 7 | |||||||||||||||||
While monitoring the Cylinder 1-6 Injector Circuit Status parameter with a scan tool, crank the engine. Do all of the Cylinder Injector Circuit Status parameters display OK while cranking the engine? | -- | Go to Step 8 | ||||||||||||||||||
8 |
Is the fuel pressure within the specified range when the fuel pump is operating? | 358-405 kPa (52-59 psi) | Go to Step 9 | Go to Fuel System Diagnosis | ||||||||||||||||
9 | Inspect for the following conditions:
Did you complete the action? | -- | Go to Step 10 | -- | ||||||||||||||||
10 |
Does the engine start and continue to operate? | -- | Go to Step 11 | Go to Step 2 | ||||||||||||||||
11 |
Are any DTCs displayed? | -- | System OK |