P0322 on 2011-2018 Ford Focus: Crank-No-Start Causes and Fixes

What's Unique About the 2011-2018 Ford Focus

For the third-generation Ford Focus (2011-2018), the P0322 code is a very common indicator of a failed crankshaft position sensor. While wiring or PCM issues are possible, the sensor itself is the most frequent point of failure on this platform. Owners often experience a sudden crank-no-start condition or stalling with little to no warning, which can sometimes be related to heat soak (the sensor fails when hot, but works again after cooling down). The fix is typically straightforward, involving the replacement of this single sensor. 🎬 Watch: A quick guide to fixing the P0322 code. A notable issue for 2012-2014 models is a wiring harness that can chafe against the engine, causing identical symptoms; this is covered by Ford TSB 18-2062.

Symptoms You May Notice

• Engine cranks but will not start.
🎬 See why your Focus cranks but won't start.
• Engine stalls unexpectedly while driving or at idle, sometimes only after the engine is warm.
• Check Engine Light is on.
• Tachometer reads 0 RPM while cranking the engine.
• Hesitation or loss of power under acceleration.
• Car enters 'limp mode', limiting speed and RPM.
• Rough or unstable idle before stalling.

Most Likely Causes

1. Failed Crankshaft Position Sensor (CKP) 🔴 High Probability The crankshaft position sensor on this generation of Focus is a known common failure point. The sensor can fail internally from heat cycles and age, or develop cracks in its plastic housing, allowing moisture or oil inside. Failures are often intermittent at first, occurring when the engine bay is hot and resolving after a cool-down period.
   How to confirm: Observe the tachometer while cranking; if it stays at zero, the CKP sensor is the prime suspect. A diagnostic scanner can be used to check for a live Engine RPM PID during cranking. If no signal is present, and the wiring is confirmed to be good, the sensor has failed. A visual inspection may reveal cracks in the sensor's body.
   Typical fix: Replace the crankshaft position sensor. It is highly recommended to use an OEM Motorcraft part to avoid premature failure of aftermarket sensors.
   Est. part cost: $30-$70
2. Wiring Harness or Connector Damage 🟡 Medium Probability For 2012-2014 models, Ford issued TSB 18-2062 regarding a section of the engine wiring harness that can chafe against the engine block or intake manifold, leading to severed wires for multiple sensors, including the CKP. This can cause a P0322 and other codes. The sensor is also located low on the engine, exposing its wiring to potential damage from road debris, oil leaks, and heat from the exhaust.
   How to confirm: Visually inspect the wiring harness leading to the CKP sensor for any signs of fraying, melting, or breaks. Check the connector for corrosion, bent pins, or a loose connection. For 2012-2014 models, specifically inspect the harness area near the intake manifold and G103 ground for chafing.
   Typical fix: Repair the damaged section of the wiring harness by soldering in new wire and protecting it with electrical tape and split-loom tubing. If the connector is damaged, replace the connector pigtail.
   Est. part cost: $15-$40

Rare But Worth Checking

• Weak Battery or Charging System Issue: A very low battery voltage during cranking can sometimes prevent the sensor from generating a strong enough signal for the PCM to read, triggering a P0322 code. This is more likely if the battery is old or the vehicle has other electrical issues, such as corrosion on the battery terminals or junction box.
• Faulty Powertrain Control Module (PCM): This is the least likely cause. The PCM itself can fail, but all other possibilities, especially the sensor and its wiring, should be exhaustively ruled out before considering PCM replacement.

Diagnosis Steps

1. Connect an OBD-II scanner to confirm the P0322 code is present and check for any other codes.
2. Watch the tachometer on the instrument cluster while cranking the engine. If it does not move from zero, this strongly indicates no CKP signal.
3. Use a scan tool with live data capability to monitor the Engine RPM (PID) while cranking. A reading of 0 confirms the PCM is not seeing a signal.
4. Turn off the vehicle and locate the crankshaft position sensor. On the 2.0L GDI engine, it is on the front of the engine block (radiator side), to the right of the A/C compressor, reading the crankshaft pulley. Access is from the passenger side wheel well.
5. Visually inspect the sensor's connector and wiring for any obvious damage, corrosion, or loose connections. Pay close attention to the harness routing for signs of chafing, especially on 2012-2014 models per TSB 18-2062.
6. If the wiring appears intact, the most probable cause is a failed sensor. A cracked sensor housing is a common visual clue.
7. For advanced diagnosis, use a multimeter to check for proper voltage (typically 5V reference) and ground at the sensor connector. Use an oscilloscope to test for a square wave signal from the sensor's signal wire while cranking the engine. The absence of a wave confirms a bad sensor or circuit issue.
8. If wiring is confirmed good and there is no signal from the sensor, replace the crankshaft position sensor. Use of a Motorcraft part is strongly recommended.
9. After replacement, clear the code with the scan tool. It may be necessary to perform a 'Misfire Monitor Neutral Profile Correction' procedure with a capable scan tool. Start the vehicle to confirm the fix.

Parts You'll Likely Need

• Crankshaft Position Sensor (OEM #BM5Z-6C315-A) — This is the most common failure part for a P0322 code on this vehicle, responsible for providing the engine speed signal to the PCM. The original part number CM5Z-6C315-A has been superseded by this part.
  Trusted brands: Motorcraft (OEM), Bosch, Delphi, NTK
  OEM price range: $50-$80
  Aftermarket price range: $30-$60

Related Codes That Often Appear With This One

• P0320 — P0320 indicates a malfunction or erratic signal in the same circuit, often appearing as a precursor to the complete signal loss indicated by P0322.
• P0335 — This is a generic code for 'Crankshaft Position Sensor A Circuit Malfunction.' P0322 is more specific about the complete loss of signal, but they point to the same root problem.
• P0122, P0222, P2135 — These are throttle/pedal position sensor codes that may appear alongside P0322 if the root cause is the chafed wiring harness described in TSB 18-2062, as these circuits run in the same bundle.

Technical Service Bulletins (TSBs) & Recalls

• TSB 18-2062: Some 2012-2014 Focus vehicles with a 2.0L GDI engine may exhibit concerns of engine runs rough, crank no-start, loss of power, and/or an illuminated MIL with DTC P0322 (and others) due to wiring harness chafing. According to TSB Bulletin #TSB18-2062, this condition can also cause a loss of engine RPM signal and multiple related codes including P0320 and P1336.

Platform-Specific Known Issues

• TSB 18-2062: Chafing Wiring Harness: Some 2012-2014 Focus vehicles may exhibit a crank-no-start, stalling, and a host of DTCs including P0322 due to the engine wiring harness chafing against the engine. The TSB provides a procedure for inspecting the harness, repairing damaged circuits, and rerouting/protecting the harness to prevent recurrence. This should be a primary check on these model years.
• Intermittent Heat-Related Failure: Many owner accounts describe the stalling/no-start issue happening only after the car has been driven for a while and is hot. The car may restart and run normally after it has been allowed to cool down for 30-60 minutes. This symptom is highly indicative of an internally failing crankshaft position sensor.

Mechanic-Grade Diagnostic Values

• CKP Sensor Supply Voltage (VREF) — expected: ~5.0 Volts. Failure: Voltage below 4.5V or 0V indicates a problem with the PCM's 5V reference circuit or a short in the harness.
• CKP Sensor Signal (Oscilloscope) — expected: Clean square wave, alternating between ~0V and ~5V while cranking.. Failure: No waveform, or a noisy/erratic waveform, confirms a failed sensor or circuit integrity issue.
• CKP Sensor Ground Circuit — expected: Near 0V and good continuity to chassis ground.. Failure: High voltage or high resistance on the ground pin indicates a bad ground connection, which can cause erratic sensor behavior.

Hidden / Shadow Codes Worth Checking

• Mode $06, Test ID $80-$84: These are not DTCs but test results from the non-continuous misfire monitor on CAN-bus Fords. A P0322 'no signal' fault will prevent this monitor from running. However, if you have an intermittent P0320 code, checking these test IDs with a capable scanner can reveal misfire counts for specific cylinders before they are high enough to set a P030x code. (see via Generic OBD-II functions on an advanced scan tool.)

Scan Tool Commands That Help

• Ford IDS, FORScan, or equivalent professional scanner: Misfire Monitor Neutral Profile Correction — This procedure is required after replacing the crankshaft position sensor, PCM, or performing major engine repairs. It allows the PCM to learn the mechanical variations of the crankshaft reluctor wheel to accurately detect misfires. Failure to perform this relearn can prevent the misfire monitor from running and may lead to other issues. The procedure involves warming the engine and then revving it above ~3500 RPM and letting it coast down in neutral.

Wiring & Ground Locations

• G103 — On the engine, near the intake manifold. Access requires removing the air cleaner assembly and lifting the engine harness.. This is a key engine ground point. TSB 18-2062, which addresses wiring harness chafing that causes P0322, involves this ground. A poor connection here can cause this and many other sensor codes.
• CKP Sensor Connector — On the front (radiator side) of the engine block, to the right of the A/C compressor, plugged into the sensor.. This is the primary point for testing sensor voltage and signal. It's a 3-pin connector, typically with a 5V reference, signal, and ground wire.
• Harness Chafe Point (TSB 18-2062) — The section of the main engine wiring harness that can rub against a sharp edge of the intake manifold or engine block.. On 2012-2014 models, this is a common point of failure where the CKP sensor wires can be severed, directly causing a P0322 'no signal' fault.

Real Owner Repair Stories

• Reddit user MaleficentSoul on r/FocusST (Ford Focus ST (similar 2.0L engine family)) — Rough running and a persistent P0322 code.
  ❌ Tried (didn't work) Replacing the crankshaft position sensor (worked for one week, then code returned).
  ✅ What actually fixed it The root cause was found to be corrosion on the High Voltage Junction Box (HVJB) from a used battery, along with a bad positive battery terminal end. The fix involved replacing the battery, cleaning the HVJB, replacing the Midi Bar Fuses for the BCM, and replacing the battery terminal.

OEM Part Supersession History

• CM5Z-6C315-A → BM5Z-6C315-A — Standard part revision and update by the manufacturer.
  Heads up: The parts are interchangeable, but BM5Z-6C315-A is the latest revision and the recommended service part.

Model Year Variations Within This Range

• 2012-2014: These model years are specifically called out in TSB 18-2062 for having a high risk of the engine wiring harness chafing against the engine block or intake manifold, leading to a P0322 code. Later models (2015-2018) may have had improved harness routing or protection from the factory.

Diagnostic Flowchart

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: For this specific repair, using a used crankshaft position sensor is NOT recommended. It is a low-cost electronic part that is a known common failure point due to heat and age. The labor to replace it is more significant than the part cost, so installing a used sensor with unknown remaining life is a poor investment.

What to inspect on the donor part:

• Not applicable as used sensors are not recommended.

OEM-only on this vehicle (don't cheap out):

• Crankshaft Position Sensor

Aftermarket brands forum-validated for this vehicle:

• Bosch
• Delphi
• NTK

Brands owners have reported issues with on this vehicle:

• No-name, unbranded, or 'white-box' sensors sold on online marketplaces are frequently reported by mechanics to be dead-on-arrival or fail prematurely.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P0320 — Ignition/Distributor Engine Speed Input Circuit Malfunction. This is a more general fault code for the same circuit as P0322 ('No Signal') and often points to the same root causes like a failing sensor or wiring issue.
• P0335 — Crankshaft Position Sensor 'A' Circuit Malfunction. This is the generic OBD-II code for a CKP sensor fault. P0322 is a more specific version of this code, indicating a complete loss of signal.
• P0300 — Random/Multiple Cylinder Misfire. If the crankshaft position sensor signal is intermittent or erratic before it fails completely, it can cause the engine to misfire, which may set this code alongside P0322.
• P1336 — Ford-specific code related to Crank/Cam sensor adaptation. This can appear after a sensor replacement if the 'Misfire Monitor Neutral Profile Correction' procedure mentioned in the diagnosis steps is required but has not been performed.

Frequently Asked Questions