P1317
Injector Circuit IDM Codes Not Updated.
- Lincoln
- Powertrain
- Manufacturer code
- Medium severity
How this code is built
- P
- SystemPowertrain
- 1
- Defined byThe manufacturer
- 3
- AreaIgnition system or misfire
- 17
- FaultThe specific fault in that area
What it means
On Lincoln models this code uses the Ford definition: Injector Circuit, IDM Codes Not Updated. The control unit has found that the injector calibration or identification codes it holds have not been updated to match the injectors or module fitted, or cannot be verified. This usually follows injector or module replacement, or a communication or memory fault. Whether the car has an injector driver module, and how the codes are loaded, depends on the model and engine, so check the manufacturer procedure for that vehicle.
Symptoms
- Engine warning light on
- Rough idle or uneven running
- Misfire or hesitation under load
- Hard starting or extended cranking
- Reduced power or the engine running in a limited mode
- Poor fuel economy
Possible causes
- Injector calibration codes not entered or not updated after injector, PCM or injector driver module replacementlikely
- Incorrect or mismatched injector codes entered during a previous repairlikely
- Wiring or connector fault in the injector circuit or injector driver module feed (corrosion, chafing, poor pin tension)possible
- Faulty injector or injector driver circuit giving an out-of-range readingpossible
- Low battery voltage or poor power and earth supply to the control module interrupting the code updatepossible
- Faulty PCM or injector driver module memory or communication faultrare
How to diagnose
- Read all stored and pending codes and the freeze frame data, and note any other injector, misfire or communication codes.
- Find out whether injectors, the PCM or an injector driver module have been replaced or reprogrammed recently, and check the repair history.
- Check battery condition and charging voltage, as low voltage can stop code updates and cause false faults.
- Inspect the injector wiring, connectors and the injector driver module connector for damage, corrosion, heat damage or water ingress.
- Check the power and earth supplies to the PCM and injector driver module, where fitted, against the wiring diagram for that model.
- Compare the injector codes stored in the control unit with the codes on the fitted injectors, using the manufacturer procedure for that engine.
- Test the injector circuits for resistance, shorts and open circuits, and check injector operation with live data where the model allows.
- Clear the code after repair and road test, then recheck for the code returning.
How to fix
- Enter or update the injector calibration codes using the manufacturer procedure, matching the codes on the fitted injectors.
- Correct any wrong codes entered previously and confirm the control unit accepts them.
- Repair or replace damaged wiring, terminals or connectors in the injector or driver module circuits.
- Replace a faulty injector, then enter its codes correctly.
- Restore correct battery and supply voltage, repairing any power or earth fault.
- Replace or reprogram the PCM or injector driver module only if it is confirmed faulty, then set up the injector codes.
Can I keep driving?
The car can usually be driven short distances to a workshop, but fix it soon as running with wrong injector data can cause rough running and extra engine wear. Stop if it misfires badly, loses power or the engine light flashes.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.
This code for other makes
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