PO380 and p1316 what do thies coads mean.
P0380 - Glow Plug/Heater Circuit "A" Malfunction
Bad glow plug. The glow plug system is used to assist in providing the heat required to begin combustion during cold engine temperatures. The glow plugs are heated before and during cranking, as well as initial engine operation. The engine control module (ECM) controls the glow plug ON times by monitoring coolant temperature and glow plug voltage. The California Glow Plug system has eight individual glow plug supply circuits between the controller and the glow plugs. If the feedback voltage from the controller to the ECM is not within range, DTC P0380 will set.
- The glow plugs are commanded OFF and the glow plug feedback is more than 2 volts. or
- The glow plugs are commanded on and the glow plug feedback is not between 5 volts and 6.2 volts.
Keep in mind that the "wait to start" light only comes on while the
voltage is dropping in that circuit. This should only take 3-5 sec's. If
it takes longer, refer to your "Likely problem" you listed above. That
would be the Heater Module. If your glo plugs stay on, your batteries
would be dead in no time. If any of your plugs go bad, they would each
be listed on the reader per cyl 1-8. If you need to change the Module,
P1316 - Injector Circuit / IDM Codes Detected.
This code indicates that codes are stored in the IDM
Possible causes are as follows:
- Injector(s) or circuit(s)
- Open or shorted IDM enable circuit
- Open/short in EF circuit
- Open/short in FDCS circuit
- IDM relay
- IDM powering circuits
- Failed IDM
- Failed PCM
Check your Injector Driver Module wires, circuits 821 (Brown/Orange) and 818 (Grey/White) between the PCM and IDM. On the IDM side, the connector pin numbers are 17 for circuit 821, and pin 4 for circuit 818. You should check for high resistance in that circuit, short to ground, or open circuits. If wiring checks out good, you may need to replace your IDM. It's not uncommon for water intrusion into the module, due to its mounting location. Also check the engine wiring harness where it routes up over the driver side shock and/or driver side valve cover. That code is either a key-on/engine-off or a continuous memory code.
Hope this helps (remember to rate this answer).
Feb 04, 2011 |
1999 Ford F350 Regular Cab