Section 07-01A: Transmission, Automatic, E4OD
1996 All F-Series and Bronco with E4OD Automatic Transmission Workshop Manual
DIAGNOSIS AND TESTING

Diagnostic Trouble Code Charts

 
DIAGNOSTIC TROUBLE CODE CHARTS
Diagnostic Trouble CodeComponentDescriptionConditionSymptomAction
Three DigitFour Digit
111P1111SystemPassNo concern detected.Concern not detected by powertrain control module.Refer to PC/ED.
211aP0340
P0341
P0344
Distributor Ignition SystemDI system concern.Engine RPM circuit failure.Crankshaft position sensor failure/engine will stall or not run. May flash transmission control indicator lamp.aRefer to PC/ED.
126 P0237 Manifold Absolute Pressure Sensor Manifold absolute pressure sensor out of On-Board Diagnostics range. Manifold absolute pressure sensor signal higher or lower than expected or no response during Dynamic Response (Goose) Test. Rerun On-Board Diagnostics.
128 P0236 Manifold Absolute Pressure Sensor Manifold absolute pressure sensor vacuum circuit failure. Manifold Absolute Pressure Sensor signal higher or lower than expected or no response due to vacuum hose, circuit damaged, disconnected or restricted. Firm shift feel, late shifts at altitude. Refer to PC/ED.
121 P1124 Throttle Position Sensor Throttle position sensor out of On-Board Diagnostics range. Throttle position sensor (gasoline engines) not at idle position during KOEO. Rerun at appropriate throttle position sensor position per the engine application.
127 P0235 MAP Sensor MAP sensor inactive. MAP sensor or circuit open, shorted to ground or 5V. Firm shift feel, late shift at altitude. Refer to PC/ED.
633 P1781 4x4 Low Switch 4x4 low switch closed. 4x4 low switch closed/or 4x4 low indicator lamp circuit open. Failed on Early shift schedules in 4x2 and 4x4 HI range.
Failed off Shifts delayed in 4x4 low.
NOTE: If the 4x4 low indicator light fuse is blown, the transmission will shift according to the 4x4 low shift schedule regardless of the transfer case position.
Refer to PC/ED.
691 P1729 4x4L 4x4 Low switch failure. 4x4 low switch failure during normal vehicle operation. Early shifts, harsh shifts, Increase in electronic pressure control pressure. Refer to PC/ED.
636 P1711 Transmission Fluid Temperature Sensor Transmission fluid temperature sensor out of On-Board Diagnostics range. Transmission not at operating temperature during On-Board Diagnostics. Warm vehicle to normal operating temperature and rerun On-Board Diagnostics.
452 P0500
P0503
P1500
P1501
Vehicle Speed Sensor Insufficient or intermittent vehicle speed input. Powertrain control module detected a loss of vehicle speed signal during operation. Harsh engagements, firm shift feel, abnormal shift schedule, unexpected downshifts may occur at closed throttle, abnormal torque converter clutch operation or engages only at wide-open throttle. May flash transmission control indicator lamp. Refer to PC/ED.
617bP0781bShift Solenoid 1, Shift Solenoid 2 or Internal Transmission Components1-2 shift error.Engine rpm drop not detected when 1-2 shift was commanded by powertrain control moduleImproper gear selection depending on failure mode and transmission range selector lever position. Refer to Shift Solenoid Operation Chart. Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash transmission control indicator lamp.Refer to Pinpoint Test A.
123P0123Throttle Position Sensor or Accelerator Pedal Position SensorThrottle position sensor or Accelerator Pedal Position Sensor circuit above maximum voltage, (short to vehicle power).Voltage above or below specification for On-Board Diagnostics or during normal vehicle operation.Harsh engagements, firm shift feel, abnormal shift schedule, abnormal torque converter clutch operation or does not engage.Refer to PC/ED.
637P0713Transmission Fluid Temperature Sensor-40°C
(-40°F) indicated, transmission fluid temperature sensor circuit open.
Voltage drop across transmission fluid temperature sensor exceeds scale set for temperature -40°C (-40°F).Torque converter clutch and stabilized shift schedule may be enabled sooner after cold start. May flash TCIL.Refer to Pinpoint Test B.
618bP0782bShift Solenoid 1, Shift Solenoid 2 or Internal Transmission Components2-3 shift error.Engine rpm drop not detected when 2-3 shift was commanded by powertrain control moduleImproper gear selection depending on failure mode and transmission range selector lever position. Refer to Shift Solenoid Operation Chart. Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash transmission control indicator lamp.Refer to Pinpoint Test A.
628bP1728TransmissionTransmission slippage detection.Excessive amount of clutch slippage was detected.Transmission slippage, erratic or no torque converter clutch operation. May flash transmission control indicator lamp.Refer to Diagnosis by Symptom.
122P0122Throttle Position Sensor or Accelerator Pedal Position SensorThrottle position sensor or Accelerator Pedal Position Sensor circuit below minimum voltage, (open/shorted to ground).Voltage above or below specification for On-Board Diagnostics or during normal vehicle operation.Harsh engagements, firm shift feel, abnormal shift schedule, abnormal torque converter clutch operation or does not engage.Refer to PC/ED.
124Throttle Position SensorTP sensor voltage higher than expected.Voltage above specification.Harsh engagements, firm shift feel, abnormal shift schedule, abnormal torque converter clutch operation or does not engage.Refer to PC/ED.
125P1120Throttle Position SensorTP sensor voltage lower than expected.Voltage below specification.Harsh engagements, firm shift feel, abnormal shift schedule, abnormal torque converter clutch operation or does not engage.Refer to PC/ED.
632P1780Transmission Control SwitchTransmission control switch not changing state.Transmission control switch not cycled during On-Board Diagnostics/circuit open or shorted.No overdrive cancel when switch is cycled.Rerun diagnostics and cycle switch. Refer to PC/ED.
638P0712Transmission Fluid Temperature Sensor157°C (315°F) indicated, transmission fluid temperature sensor circuit grounded.Voltage drop across transmission fluid temperature sensor exceeds scale set for temperature of 157°C (315°F).Torque converter clutch and stabilized shift schedule may be enabled sooner after cold start. May flash TCIL.Refer to Pinpoint Test B.
539P1460
P1463
P1464
Air Conditioning ClutchA/C switch error.Diagnostic Trouble Code may result from A/C clutch being ON during On-Board Diagnostics.Failed on electronic pressure control pressure slightly low with A/C off.
Failed off electronic pressure control pressure slightly low with A/C on.
Refer to PC/ED.
654P1705Transmission Range (TR) SensorTransmission Range (TR) Sensor not in park.On-Board Diagnostics not run in park.Rerun On-Board Diagnostics in park. Refer to Pinpoint Test D.
634P0705Transmission Range (TR) SensorTransmission Range (TR) Sensor out of range.Indicated voltage drop across Transmission Range (TR) Sensor exceeds limits established for each position.Harsh engagements, firm shift feel. May flash TCIL.Refer to Pinpoint Test D.
657P1783Transmission Fluid Temperature SensorTransmission Overtemp Condition.Transmission fluid temperature exceeded 132°C (270°F).Slight increase in electronic pressure control pressure. May flash transmission control indicator lamp.Refer to Pinpoint Test B.
a Distributor Ignition (DI) System.
b May also be generated by other non-electronic related transmission hardware condition.


DIAGNOSTIC TROUBLE CODE CHARTS (CONTINUED)
Diagnostic Trouble CodeComponentDescriptionConditionSymptomAction
Three DigitFour Digit
667P0707Transmission Range (TR) SensorTransmission Range (TR) Sensor circuit below minimum voltage.Transmission Range (TR) Sensor circuit or powertrain control module shorted or grounded.Increase in electronic pressure control pressure.Refer to Pinpoint Test D.
668P0708Transmission Range (TR) SensorTransmission Range (TR) Sensor circuit above maximum voltage.Transmission Range (TR) Sensor, circuit or powertrain control module indicates open.Increase in electronic pressure control pressure.Refer to Pinpoint Test D.
157, 158, 159, 184, 185P0102, P0103, P1100, P1101Mass Airflow SensorMass airflow sensor diagnostic trouble codes.Mass airflow sensor system has a malfunction which may cause a transmission concern.High electronic pressure control pressure. Firm shifts and engagements. May flash transmission control indicator lamp.Refer to PC/ED.
P0107Baro SensorBaro Sensor circuit failure.Barometric pressure sensor signal lower than expected.Firm shift feel, late shifts at altitude.Refer to PC/ED.
P0108Barometric pressure sensorBaro Sensor circuit failure.Barometric pressure sensor signal higher or lower than expected.Firm shifts, late shifts at altitude.Refer to PC/ED.
P1280Injector control pressure sensorICP sensor circuit failure. Out of range low.Open/Grounded circuit, biased sensor or PCM.May result in firm shifts.Refer to 7.3L DI PC/ED manual.
P1281Injector control pressure sensorICP sensor circuit failure. Out of range high.Short circuit to 5 volt Ref., biased sensor or PCM.May result in firm shifts.Refer to 7.3L DI PC/ED manual.
619aP0783aShift Solenoid 1, Shift Solenoid 2 or Internal Transmission Components3-4 shift error.Engine rpm drop not detected when 3-4 shift was commanded by powertrain control module.Improper gear selection depending on failure mode and transmission range selector lever position. Refer to Shift Solenoid Operation Chart. Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash transmission control indicator lamp.Refer to Pinpoint Test A.
129Manifold absolute pressure sensorInsufficient manifold absolute pressure sensor change dynamic response test (gasoline engines only).Manifold absolute pressure sensor signal higher or lower than expected or no response during Dynamic Response (Goose) Test.Rerun On-Board Diagnostics and perform Dynamic Response Test.
167Throttle Position SensorInsufficient throttle position sensor change dynamic response test.Throttle not depressed during KOER.Rerun On-Board Diagnostics and depress (goose) throttle when indicated.
536P1703Brake On/Off SwitchBrake not actuated during On-Board Diagnostics.Brake not cycled during KOER.Failed on or not connected Torque converter clutch will not engage at less than 1/3 throttle. 
   Brake on/off switch circuit failed.Brake on/off circuit failure.Failed off Torque converter clutch will not disengage when brake is applied.Refer to PC/ED.
621bP0750bShift Solenoid 1Shift solenoid circuit failure.Solenoid 1 circuit failed to provide voltage drop across solenoid. Circuit open or shorted or powertrain control module driver failure during KOEO.Improper gear selection depending on failure mode and transmission range selector lever position. Refer to Shift Solenoid Operation Chart.Refer to Pinpoint Test A.
622bP0755bShift Solenoid 2Shift Solenoid 2 solenoid circuit failure.Solenoid 2 circuit fails to provide voltage drop across solenoid. Circuit open or shorted or powertrain control module driver failure during KOEO.Improper gear selection depending on failure mode and transmission range selector lever position. Refer to the Shift Solenoid Operation Chart.Refer to Pinpoint Test A.
626b1754bCoast Clutch SolenoidCoast clutch solenoid circuit failure.Coast clutch solenoid failed to provide voltage drop across solenoid. Circuit open or shorted or powertrain control module driver failure during KOEO.Failed off No third gear engine braking in overdrive cancel.
Failed on Third gear engine braking in overdrive range. Coast Clutch may be damaged/eventual failure.
Refer to Pinpoint Test G.
629bP0743bTorque Converter Clutch SolenoidTorque converter clutch solenoid circuit failure.Torque converter clutch solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or powertrain control module driver failure during KOEO.Short circuit Engine stalls in Drive or manual 2 at idle with brake applied.
Open circuit Torque converter clutch never engaged.
Refer to Pinpoint Test C.
631P1779Transmission Control Indicator LampTransmission control indicator lamp circuit failure.Transmission control indicator lamp circuit open or shorted.Failed on Overdrive cancel mode always indicated, no flashing for electronic pressure control failure.
Failed off Overdrive cancel mode never indicated, no flashing for electronic pressure control failure. May be due to wiring or PCM concern. Erratic operation (flashing) may be due to wiring concern.
Refer to PC/ED.
624bP1747bElectronic Pressure ControlElectronic pressure control circuit failure, shorted circuit or powertrain control module.Voltage through electronic pressure control circuit is checked and compared after a time delay. An error will be noted if tolerance is exceeded during KOEO and continuous On-Board Diagnostics.Short circuit Causes minimum electronic pressure control pressure (minimum capacity). Limits engine torque (partial fuel shut-off, heavy misfire). Flashing transmission control indicator lamp. Open circuit Causes maximum electronic pressure control, harsh engagements and shifts. May flash transmission control indicator lamp.Refer to Pinpoint Test E.
N/AP0751SS1Shift solenoid No. 1 functional failure.Mechanical or hydraulic failure of the shift solenoid.Improper gear selection depending on failure mode and manual lever position.Refer to Solenoid On/Off Chart. Refer to Pinpoint Test A.
N/AP0756SS2Shift solenoid No. 2 functional failure.Mechanical or hydraulic failure of the shift solenoid.Improper gear selection depending on failure mode and manual lever position.Refer to Solenoid On/Off Chart. Refer to Pinpoint Test A.
N/AP1742TCCTCC solenoid failed ON (California only).TCC solenoid has failed ON by electric, mechanical or hydraulic concern.Harsh shifts.Refer to Pinpoint Test C.
N/AP1743TCCTCC solenoid failed ON.The PCM picked up an excessive amount of slippage during normal vehicle operation.Harsh shifts.Refer to Pinpoint Test C.
N/AP1744Transmission (California only)Transmission slippage detected.The PCM picked up an excessive amount of slippage during normal vehicle operation.Transmission slippage/erratic or no torque converter clutch operation.Refer to Diagnosis by Symptom.
625bP1746bElectronic Pressure ControlPowertrain control module failure electronic pressure control driver.Voltage through electronic pressure control circuit is checked and compared after a time delay. An error will be noted if tolerance is exceeded during KOEO and continuous On-Board Diagnostics.Short circuit Causes minimum electronic pressure control pressure (minimum capacity). Limits engine torque (partial fuel shut-off, heavy misfire). Flashing transmission control indicator lamp.
Open circuit Causes maximum electronic pressure control, harsh engagements and shifts. May flash transmission control indicator lamp.
Refer to Pinpoint Test E.
a May also be generated by other non-electronic related transmission hardware condition.
b Output circuit check, generated only by electrical conditions.