Ford Escape Quiz
Powertrain

Diagnosis and Testing - Engine Ignition

In this manual: Powertrain
General Information — 26Chassis — 160Powertrain — 323Electrical — 356Body and Paint — 290
~16min read

Diagnostic Trouble Code (DTC) Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Module Trouble Code Description Action
PCM P0300:00 Random Misfire Detected: no subtype information GO to Pinpoint Test HD
PCM P0301:00 Misfire Detected in Cylinder 1: no subtype information GO to Pinpoint Test HD
PCM P0302:00 Misfire Detected in Cylinder 2: no subtype information GO to Pinpoint Test HD
PCM P0303:00 Misfire Detected in Cylinder 3: no subtype information GO to Pinpoint Test HD
PCM P0313:00 Misfire Detected with Low Fuel Level: no subtype information GO to Pinpoint Test HD
PCM P0325:00 Knock/Combustion Sensor, Vibration Sensor, Circuit "A": no subtype information GO to Pinpoint Test DG
PCM P0327:00 Knock/Combustion Vibration Sensor Circuit "A" Low Signal Level: no subtype information GO to Pinpoint Test DG
PCM P0328:00 Knock/Combustion Vibration Sensor Circuit "A" High Signal Level: no subtype information GO to Pinpoint Test DG
PCM P0351:00 Ignition Coil "A" Primary Circuit Control/Open: no subtype information GO to Pinpoint Test JF
PCM P0352:00 Ignition Coil "B" Primary Circuit Control/Open: no subtype information GO to Pinpoint Test JF
PCM P0353:00 Ignition Coil "C" Primary Circuit Control/Open: no subtype information GO to Pinpoint Test JF
PCM P06D1:00 Internal Control Module Ignition Coil Control Module Characteristics: no subtype information GO to Pinpoint Test JF
PCM P112A:00 Too many engine starts in factory/shipping mode: no sub-type information GO to Pinpoint Test JB
PCM P130D:00 Engine Knock/Combustion Characteristics - Power Limiting Forced: no subtype information GO to Pinpoint Test DG
PCM P2300:00 Ignition Coil 'A' Primary Control Circuit Low: no sub-type information GO to Pinpoint Test JF
PCM P2301:00 Ignition Coil 'A' Primary Control Circuit High: no sub-type information GO to Pinpoint Test JF
PCM P2303:00 Ignition Coil 'B' Primary Control Circuit Low: no sub-type information GO to Pinpoint Test JF
PCM P2304:00 Ignition Coil 'B' Primary Control Circuit High: no sub-type information GO to Pinpoint Test JF
PCM P2306:00 Ignition Coil 'C' Primary Control Circuit Low: no sub-type information GO to Pinpoint Test JF
PCM P2307:00 Ignition Coil 'C' Primary Control Circuit High: no sub-type information GO to Pinpoint Test JF

Global Customer Symptom Codes (GCSC) Table

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Symptom Action
Starting/Running/Moving > Starting > No Crank > Always GO to Pinpoint Test JB
Start/Run/Move > Starting > Slow crank/battery > Always GO to Pinpoint Test JB
Start/Run/Move > Starting > Hard Start/Extended Crank > Always GO to Pinpoint Test DG
Start/Run/Move > Starting > Hard Start/Extended Crank > Always GO to Pinpoint Test JB
Start/Run/Move > Starting > Hard Start/Extended Crank > Always GO to Pinpoint Test JF
Starting/Running/Moving > Starting > Auto Start-Stop > Does Not Operate GO to Pinpoint Test DG
Starting/Running/Moving > Starting > Auto Start-Stop > Does Not Operate GO to Pinpoint Test JB
Start/Run/Drive/Move > Run > Smoke from Exhaust > White GO to Pinpoint Test JB
Drivability > Rough Running > Acceleration > Always GO to Pinpoint Test DG
Drivability > Rough Running > Acceleration > Always GO to Pinpoint Test HD
Drivability > Rough Running > Acceleration > Always GO to Pinpoint Test JB
Drivability > Rough Running > Acceleration > Always GO to Pinpoint Test JF
Drivability > Rough Running > Cruise/Steady Speed > Always GO to Pinpoint Test HD
Drivability > Rough Running > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Rough Running > Deceleration > Always GO to Pinpoint Test JB
Drivability > Idle Quality > Rough > Always GO to Pinpoint Test JB
Drivability > Idle Quality > Rolling > Always GO to Pinpoint Test JB
Drivability > Idle Quality > Slow Return > Always GO to Pinpoint Test JB
Drivability > Idle Quality > Rough > Always GO to Pinpoint Test JB
Drivability > Idle Quality > Rough > Always GO to Pinpoint Test JF
Drivability > Idle Quality > Steady High Idle Speed Control (IAC) > Performance/Function GO to Pinpoint Test JB
Drivability > Stalls/Stops > At Idle > Always GO to Pinpoint Test JB
Drivability > Stalls/Exits > Acceleration > Always GO to Pinpoint Test JB
Drivability > Stalls/Exits > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Concerns Caused By > At Idle > Always GO to Pinpoint Test JB
Drivability > Concerns Caused By > Acceleration > Always GO to Pinpoint Test JB
Drivability > Concerns Caused By > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Concerns Caused By > Deceleration > Always GO to Pinpoint Test JB
Drivability > Lack/Loss of Power > Acceleration > Always GO to Pinpoint Test DG
Drivability > Lack/Loss of Power > Acceleration > Always GO to Pinpoint Test JB
Drivability > Lack/Loss of Power > Acceleration > Always GO to Pinpoint Test JF
Drivability > Lack/Loss of Power > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Lack/Loss of Power > Cruise/Steady Speed > Always GO to Pinpoint Test JF
Drivability > Spark Knock > Acceleration > Always GO to Pinpoint Test DG
Drivability > Spark Knock > Acceleration > Always GO to Pinpoint Test JB
Drivability > Spark Knock > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Poor Fuel Economy > City Driving > Light Load GO to Pinpoint Test JB
Drivability > Poor Fuel Economy > City Driving > Light Load GO to Pinpoint Test JF
Drivability > Poor Fuel Economy > Highway Driving > Continuous GO to Pinpoint Test JB
Drivability > Poor Fuel Economy > Highway Driving > Continuous GO to Pinpoint Test JF
Drivability > Poor Fuel Economy > Combined > Continuous GO to Pinpoint Test JB
Drivability > Poor Fuel Economy > Combined > Continuous GO to Pinpoint Test JF
Drivability > Hesitation/Stumble > Acceleration > Always GO to Pinpoint Test JB
Drivability > Hesitation/Stumble > Acceleration > Always GO to Pinpoint Test JF
Drivability > Hesitation/Stumble > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Engine Surge > At Idle > Always GO to Pinpoint Test JB
Drivability > Engine Surge > Acceleration > Always GO to Pinpoint Test JB
Drivability > Engine Surge > Cruise/Steady Speed > Always GO to Pinpoint Test JB
Drivability > Engine Surge > Deceleration > Always GO to Pinpoint Test JB

Pinpoint Tests


PINPOINT TEST DG: KNOCK SENSOR (KS)
Introduction

Normal Operation and Fault Symptoms

Refer to DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PCM P0325:00 Knock/Combustion Sensor, Vibration Sensor, Circuit "A": no subtype information Set when the PCM detects that the voltage is outside the calibrated level. The KS 11 detects vibration as engine speed increases and decreases. The KS 11 generates voltage based on this vibration. It may be necessary to drive the vehicle for several minutes for this DTC to set.
PCM P0327:00 Knock/Combustion Vibration Sensor Circuit "A" Low Signal Level: no subtype information Set when the PCM detects that the voltage is outside the calibrated level. The KS 11 detects vibration as engine speed increases and decreases. The KS 11 generates voltage based on this vibration. It may be necessary to drive the vehicle for several minutes for this DTC to set.
PCM P0328:00 Knock/Combustion Vibration Sensor Circuit "A" High Signal Level: no subtype information Set when the PCM detects that the voltage is outside the calibrated level. The KS 11 detects vibration as engine speed increases and decreases. The KS 11 generates voltage based on this vibration. It may be necessary to drive the vehicle for several minutes for this DTC to set.
PCM P130D:00 Engine Knock/Combustion Characteristics - Power Limiting Forced: no subtype information Set when the KS system detects excessive pre-ignition. The KS voltage exceeds the maximum calibrated value a specified number of times within a set period of time while pre-ignition is present. Engine performance may be limited to protect the engine if this DTC is set. Diagnose all other diagnostic trouble codes (DTCs) first. If no other DTCs are present, check for base engine concerns before continuing diagnosis.

Possible Sources

  • Knock Sensor Circuit Concerns
  • Base Engine Concerns
  • Cooling System Concerns
  • Fuel Quality
  • Positive Crankcase Ventilation (PCV) System Concerns
  • Oil and Filter Maintenance Concerns
  • Oil Overfilled
  • Excessive Oil Consumption
  • Charge Air Cooler (CAC) Restriction
  • Spark Plug
  • Fuel Injector
  • Knock Sensor (12A699)
  • PCM (12A650)
PINPOINT TEST HD: MISFIRE DETECTION MONITOR
Introduction

Normal Operation and Fault Symptoms

Refer to DTC Fault Trigger Conditions.

Clearing diagnostic trouble codes (DTCs) from the PCM erases all PCM recorded freeze frame data. Be sure to record any PCM freeze frame information before continuing.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PCM P0300:00 Random Misfire Detected: no subtype information Set when the PCM detects misfires in multiple engine cylinders or when the PCM cannot determine which cylinder is misfiring.
PCM P0301:00 Misfire Detected in Cylinder 1: no subtype information Set when the PCM detects misfires in cylinder 1. A misfire is defined as a lack of combustion in the cylinder due to a lack of spark, incorrect fuel delivery, low compression, or any other cause. The MIL flashes once per second when the misfire is severe enough to cause catalyst damage. If the MIL is steady due to misfire, this indicates the emissions threshold has been exceeded.
PCM P0302:00 Misfire Detected in Cylinder 2: no subtype information Set when the PCM detects misfires in cylinder 2. A misfire is defined as a lack of combustion in the cylinder due to a lack of spark, incorrect fuel delivery, low compression, or any other cause. The MIL flashes once per second when the misfire is severe enough to cause catalyst damage. If the MIL is steady due to misfire, this indicates the emissions threshold has been exceeded.
PCM P0303:00 Misfire Detected in Cylinder 3: no subtype information Set when the PCM detects misfires in cylinder 3. A misfire is defined as a lack of combustion in the cylinder due to a lack of spark, incorrect fuel delivery, low compression, or any other cause. The MIL flashes once per second when the misfire is severe enough to cause catalyst damage. If the MIL is steady due to misfire, this indicates the emissions threshold has been exceeded.
PCM P0313:00 Misfire Detected with Low Fuel Level: no subtype information Set when the PCM detects an engine misfire error at low fuel level. Before diagnosing engine misfire DTCs, make sure the fuel level is above 1/8.

Possible Sources

  • Driving Habits
  • Ignition System Concern
  • EVAP System Concern
  • Exhaust Gas Recirculation (EGR) System Concern
  • Low Fuel
  • Poor Fuel Quality
  • EVAP Purge Valve
  • Camshaft Position (CMP) sensor
  • Crankshaft Position (CKP) sensor
  • Fuel Injector
PINPOINT TEST JB: SECONDARY IGNITION COP
Introduction

NOTICE: A faulty ignition system can cause high catalytic converter temperatures. Inspect the components near the catalytic converter and muffler for heat damage.

Normal Operation and Fault Symptoms

Refer to DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PCM P112A: 00 Too many engine starts in factory/shipping mode: no sub-type information Set when the PCM detects that the vehicle is in shipping mode and the engine has been started more than the calibrated number of times. Spark plug fouling may be the cause, and the wrench indicator will flash for one second until the vehicle is taken out of shipping mode.

Possible Sources

  • Ignition Coil
  • Spark Plug (12405)
PINPOINT TEST JF: INTERNAL IGNITION COIL FAULT ON IGNITION COILS A THROUGH J
Introduction

Normal Operation and Fault Symptoms

Refer to DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
PCM P0351:00 Ignition Coil "A" Primary Circuit Control/Open: no subtype information Set when the PCM detects an invalid ignition monitor (IGM) signal from the PCM ignition module. DTC P0351 is set only for a primary ignition coil circuit fault. A secondary ignition coil or spark plug fault does not cause DTC P0351 to set. DTC P0351 does not indicate a primary coil circuit fault. DTC P0351 may or may not set with DTC P0301, but DTC P0351 sets first. When this DTC is set, the PCM enters Failure Mode Effects Management (FMEM) and disables the fuel injector for the affected cylinder to protect the catalytic converter. This is normal operation. Do not attempt to diagnose the fuel injector while this DTC is present. When the primary winding is damaged by a short to ground in the harness, the PCM is not damaged. Do not replace the PCM without checking the ignition coil driver functionality. Use a 12V test lamp (non-powered) to check for battery voltage (VPWR) at the ignition coil harness connector.
PCM P0352:00 Ignition Coil "B" Primary Circuit Control/Open: no subtype information Set when the PCM detects an invalid ignition monitor (IGM) signal from the PCM ignition module. DTC P0352 is set only for a primary ignition coil circuit fault. A secondary ignition coil or spark plug fault does not cause DTC P0352 to set. DTC P0302 does not indicate a primary coil circuit fault. DTC P0352 may or may not set with DTC P0302, but DTC P0352 sets first. When this DTC is set, the PCM enters Failure Mode Effects Management (FMEM) and disables the fuel injector for the affected cylinder to protect the catalytic converter. This is normal operation. Do not attempt to diagnose the fuel injector while this DTC is present. When the primary winding is damaged by a short to ground in the harness, the PCM is not damaged. Do not replace the PCM without checking the ignition coil driver functionality. Use a 12V test lamp (non-powered) to check for battery voltage (VPWR) at the ignition coil harness connector.
PCM P0353:00 Ignition Coil "C" Primary Circuit Control/Open: no subtype information Set when the PCM detects an invalid ignition monitor (IGM) signal from the PCM ignition module. DTC P0353 is set only for a primary ignition coil circuit fault. A secondary ignition coil or spark plug fault does not cause DTC P0353 to set. DTC P0303 does not indicate a primary coil circuit fault. DTC P0353 may or may not set with DTC P0303, but DTC P0353 sets first. When this DTC is set, the PCM enters Failure Mode Effects Management (FMEM) and disables the fuel injector for the affected cylinder to protect the catalytic converter. This is normal operation. Do not attempt to diagnose the fuel injector while this DTC is present. When the primary winding is damaged by a short to ground in the harness, the PCM is not damaged. Do not replace the PCM without checking the ignition coil driver functionality. Use a 12V test lamp (non-powered) to check for battery voltage (VPWR) at the ignition coil harness connector.
PCM P06D1:00 Internal Control Module Ignition Coil Control Module Characteristics: no subtype information Set when the PCM detects an ignition coil driver and diagnostic circuit fault. Check for other diagnostic trouble codes (DTCs) and diagnose them first. Check for Production Product Support (PPS) bulletins. If an updated calibration is available, update the calibration to the latest level. If an updated calibration is not available, clear the DTCs and repeat the self-test.
PCM P2300:00 Ignition Coil 'A' Primary Control Circuit Low: no sub-type information Set when the PCM detects a short to ground in the Cylinder 1 Coil-On-Plug (COP1) circuit.
PCM P2301:00 Ignition Coil 'A' Primary Control Circuit High: no sub-type information Set when the PCM detects a short to voltage in the Cylinder 1 Coil-On-Plug (COP1) circuit. On some vehicles, when the Coil-On-Plug (COP) circuit shorts to voltage, the PCM disables the coil-on-plug until the condition is no longer present for a longer period.
PCM P2303:00 Ignition Coil 'B' Primary Control Circuit Low: no sub-type information Set when the PCM detects a short to ground in the Cylinder 2 Coil-On-Plug (COP2) circuit.
PCM P2304:00 Ignition Coil 'B' Primary Control Circuit High: no sub-type information Set when the PCM detects a short to voltage in the Cylinder 2 Coil-On-Plug (COP2) circuit. On some vehicles, when the Coil-On-Plug (COP) circuit shorts to voltage, the PCM disables the coil-on-plug until the condition is no longer present for a longer period.
PCM P2306:00 Ignition Coil 'C' Primary Control Circuit Low: no sub-type information Set when the PCM detects a short to ground in the Cylinder 3 Coil-On-Plug (COP3) circuit.
PCM P2307:00 Ignition Coil 'C' Primary Control Circuit High: no sub-type information Set when the PCM detects a short to voltage in the Cylinder 3 Coil-On-Plug (COP3) circuit. On some vehicles, when the Coil-On-Plug (COP) circuit shorts to voltage, the PCM disables the coil-on-plug until the condition is no longer present for a longer period.

Possible Sources

  • Ignition Coil Circuit Concern
  • Ignition Coil (12029)
  • PCM (12A650)

Test yourself

A quick Ford Escape quiz: every answer comes with an explanation and a link to the manual page.