P0322 on 1994-2001 Ram 1500 — Ignition/Distributor Engine Speed Input Circuit No Signal
1 vehicles · 1 makes · $50-$250 repair
Most Reported On
P0322 is an OBD-II diagnostic trouble code meaning “Ignition/Distributor Engine Speed Input Circuit No Signal.” The ECM/PCM is receiving no signal at all from the ignition/distributor engine-speed input circuit. With no RPM reference, the controller cannot properly time spark and fuel, which typically causes a no-start or stall. Usually an open circuit or completely failed pickup. This code is most commonly reported on 1994-2001 Ram 1500, with repair costs ranging from $50 to $250.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0322, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P0322 mean?
P0322 stands for "Ignition/Distributor Engine Speed Input Circuit No Signal." The ECM/PCM is receiving no signal at all from the ignition/distributor engine-speed input circuit. With no RPM reference, the controller cannot properly time spark and fuel, which typically causes a no-start or stall. Usually an open circuit or completely failed pickup.
What are the most common causes of P0322?
The most common causes of P0322 are: Failed crankshaft/distributor RPM pickup sensor, Open or broken wiring in the signal circuit, Disconnected or corroded connector, Failed ignition module, Severely damaged reluctor/trigger wheel. The specific cause varies by vehicle.
How much does it cost to fix P0322?
Repair costs for P0322 range from $50 to $250, depending on the vehicle and root cause.
Which vehicles are affected by P0322?
Au7o has documented P0322 across 1 vehicle models from 1 manufacturers: Ram.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.