Injector Driver Module (IDM) Codes Detected
The POWERSTROKE-P1316 (Power Stroke) diesel fault code means: Injector Driver Module (IDM) Codes Detected. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
- Estimated cost
- $300-$800
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View pilot availability →What Are the Symptoms of POWERSTROKE-P1316?
- Misfires or cylinder dropouts
- Rough idle or stalling
- CEL
- Sudden loss of power on one bank
What Causes POWERSTROKE-P1316? (Most Likely First)
- Failed Injector Driver Module (under bumper on 7.3L, water-prone) Very Likely
- Corroded or wet IDM connectors Likely
- Open or shorted injector solenoid wiring Possible
- Individual failed injector solenoid Possible
Can I Still Drive with POWERSTROKE-P1316?
Short distances only. POWERSTROKE-P1316 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Common Fixes by Vehicle
What techs usually find when diagnosing POWERSTROKE-P1316 on specific platforms — tap a platform for the fix and the exact part:
1999-2003 Ford F-250/F-350 7.3L Power Stroke Easy DIY
P1316 (injector driver module / IDM circuit) on the 7.3L is almost always the IDM itself, located on the driver side fender behind the battery. The module fails internally from heat and vibration. OEM replacement is $200-$350 for a reman unit. Easy 30-minute swap -- three bolts, two connectors. Always check the pigtail connector for corrosion before concluding the module is bad.
Labor: 30-45 min1999-2003 Ford Excursion 7.3L Power Stroke Easy DIY
Excursion IDM location is the same as the pickup -- driver fender, behind battery. On Excursions, check the ground strap between the IDM case and chassis before replacing -- a corroded ground causes intermittent P1316 that mimics a dead module. Clean the ground stud with a wire brush and apply dielectric grease.
Labor: 30-45 minFrequently Asked Questions
What is P1316 on a 7.3L Power Stroke?
P1316 on a 7.3L Power Stroke (1994-2003) indicates: Injector Driver Module (IDM) Codes Detected. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P1316 on my Power Stroke?
Only drive short distances to get to a repair facility. Continued operation may cause further damage.
How much does it cost to fix P1316?
Repair cost is typically $300-$800 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P1316?
Pull IDM codes via scanner that reads Ford PIDs; P1316 is a 'go read the sub-codes' pointer code.
Inspect IDM physically -- located behind the driver's side bumper. Look for water intrusion, corrosion, or cracked housing.
Check IDM 48V output during cranking -- should see ~48V DC at the injector power pins.
If sub-codes point to one cylinder, test injector solenoid resistance (should be ~2.5-5 ohms).
IDM replacement is common maintenance on 15-30 year old 7.3Ls. Quality remanufactured IDM runs $300-$500.
P1316 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
Which Vehicles Commonly Get POWERSTROKE-P1316?
- 1994.5-1997 Ford F-250/F-350 7.3L Power Stroke
- 1999-2003 Ford F-250/F-350 Super Duty 7.3L Power Stroke
- 1999-2003 Ford F-450/F-550 Super Duty 7.3L Power Stroke
- 1994.5-2003 Ford E-350/E-450 7.3L Power Stroke
- 2000-2003 Ford Excursion 7.3L Power Stroke
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