Chart 12
- Warning Indicators: Check Fuel Cap, Malfunction Indicator Lamp (MIL), Power Take Off (PTO), Temperature Warning Indicator Or Gauge (applications with cylinder head temperature [CHT] sensor only), Transmission Control Indicator Lamp (TCIL), Powertrain Malfunction Indicator (Wrench)
- PTO Concerns: Not Working Correctly
NOTE:
- If the symptom is both a MIL on and exhaust emission test failure, GO directly to Chart 11.
- If the engine is a no start, GO directly to Chart 3.
- If the engine runs rough at idle, GO directly to Chart 1.
| SYSTEM/COMPONENT | REFERENCE (Engine Controls Pinpoint Test unless noted) |
|---|---|
| Check Fuel Cap | Verify the fuel filler cap is correctly tightened or the capless fuel tank filler pipe is correctly sealed. REFER to the appropriate Instrumentation, Message Center, And Warning Chimes article, to diagnose the check fuel message. |
MIL
|
REFER to the appropriate Instrumentation, Message Center, And Warning Chimes, Diagnosis And Testing article to continue diagnosis. |
| PTO | GO to PINPOINT TEST FB . |
| Temperature Warning Indicator Or Gauge (applications with CHT sensor only) | For an engine that is overheating, REFER to the
appropriate Engine Cooling article to diagnose the engine overheating symptom. Be aware that since a PCM DTC is not present, the PCM is not attempting to activate the indicator. For an engine operating at normal temperature, GO to PINPOINT TEST DL . |
TCIL
|
REFER to the Automatic Transmission, External Controls article. |
| Powertrain Malfunction Indicator (Wrench) | REFER to the Instrumentation, Message Center, And Warning Chimes article, to diagnose the wrench indicator is never/always on or to diagnose the POWERTRAIN MALFUNCTION warning is inoperative. |
| Additional Testing | GO to PINPOINT TEST Z . |