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Diagnostic Trouble Code Chart

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DIAGNOSTIC TROUBLE CODE CHART

DTC Component Description Condition Symptom Action
P1111  System Pass  No concern detected. Concern not detected by PCM. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0340, P0341, P0344  Distributor Ignition (DI) System DI system concern.  Engine rpm circuit failure. CKP sensor failure/engine will stall or not run. May flash TCIL. Distributor Ignition (DI) System. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0237  Manifold Absolute Pressure (MAP) Sensor MAP sensor out of On-Board Diagnostics range.  MAP sensor signal higher or lower than expected or no response during Dynamic Response (Goose) Test. - Rerun On-Board Diagnostics.
P0236  Manifold Absolute Pressure (MAP) Sensor MAP sensor vacuum circuit failure.  MAP 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 the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0235  Manifold Absolute Pressure (MAP) Sensor MAP sensor inactive.  MAP sensor or circuit open, shorted to ground or 5V. Firm shift feel, late shift at altitude. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P1124  Throttle Position (TP) Sensor TP sensor out of On-Board Diagnostics range.  TP sensor (gasoline engines) not at idle position during KOEO. - Rerun at appropriate Throttle Position (TP) Sensor Position per the engine application.
P0500, P1502  VSS/ABS Insufficient or intermittent vehicle speed input.  PCM 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 TCC operation or engages only at WOT. May flash TCIL or MIL. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0503  VSS/ABS Vehicle speed sensor intermittent.  PCM detected a loss, or an unrealistic change of vehicle speed signal during operation. Possible fluctuation in the speedometer. May flash TCIL. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0781, P0731 (1) SSA, SSB or Internal Transmission Components 1-2 shift error.  Engine rpm drop not detected when 1-2 shift was commanded by PCM. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to SOLENOID OPERATION CHART . Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash TCIL. Go To PINPOINT TEST A .
P0782, P0732, P0733 (1) SSA, SSB or Internal Transmission Components 2-3 shift error.  Engine rpm drop not detected when 2-3 shift was commanded by PCM. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to SOLENOID OPERATION CHART . Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash TCIL. Go To PINPOINT TEST A .
P0783 (1) SSA, SSB or Internal Transmission Components 3-4 shift error.  Engine rpm drop not detected when 3-4 shift was commanded by PCM. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to SOLENOID OPERATION CHART . Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash TCIL. Go To PINPOINT TEST A .
P0122  TP or AP Sensor TP or AP 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 TCC operation or does not engage. May flash MIL. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0123  TP or AP Sensor TP or AP 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 TCC operation or does not engage. May flash MIL. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P1120  Throttle Position (TP) Sensor TP sensor voltage lower than expected.  Voltage below specification. Harsh engagements, firm shift feel, abnormal shift schedule, abnormal TCC operation or does not engage. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P1780  TCS TCS not changing state.  TCS not cycled during On-Board Diagnostics/circuit open or shorted. No OVERDRIVE cancel when switch is cycled. Rerun diagnostics and cycle switch. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0712  TFT Sensor 157°C (315°F) indicated, TFT sensor circuit grounded.  Voltage drop across TFT sensor exceeds scale set for temperature of 157°C (315°F). TCC and stabilized shift schedule may be enabled sooner after cold start. May flash TCIL. Go To PINPOINT TEST B .
P0713  TFT Sensor -40°C (-40°F) indicated, TFT sensor circuit open.  Voltage drop across TFT sensor exceeds scale set for temperature -40°C (-40°F). TCC and stabilized shift schedule may be enabled sooner after cold start. May flash TCIL. Go To PINPOINT TEST B .
P1711  TFT Sensor TFT 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.
P1713  TFT No change in TFT - Low range.  PCM has detected no TFT change at low range during operation. May flash TCIL. Go To PINPOINT TEST B .
P1718  TFT No change in TFT - High range.  PCM has detected no TFT change at high range during operation. May flash TCIL. Go To PINPOINT TEST B .
P1783  TFT Sensor Transmission overtemp condition.  Transmission fluid temperature exceeded 132°C (270°F). Slight increase in electronic pressure control pressure when RPMs are greater than 2,500. May flash TCIL. Go To PINPOINT TEST B .
P1460, P1463, P1464  A/C A/C switch error.  DTC can result from A/C 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 the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0705  Digital TR Sensor Digital TR circuit failure.  Digital TR circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in TR4, TR3A, TR2, and/or TR1 circuits. Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position transmission stuck in D or manual 2. May flash MIL. Go To PINPOINT TEST D .
P0708  Digital TR Digital TR sensor circuit TR3A open.  Digital TR sensor circuit TR3A reading 2.6v - 5.0v (open circuit). Increase in EPC pressure. Defaults to (D)or D for all gear ranges. May flash MIL. Go To PINPOINT TEST D .
P1702  Digital TR Intermittent DTC codes P0705 or P0708.  Refer to DTC codes P0705 or P0708 condition. Refer to DTC codes P0705 or P0708 symptom. May flash TCIL. Go To PINPOINT TEST D .
P1704  Digital TR Digital TR circuit reading in between gear position during KOEO.  Digital TR sensor or shift cable incorrectly adjusted, or digital TR circuit failure. Wrong commanded EPC pressure. Digital TR reading the wrong gear position. Go To PINPOINT TEST D .
P1705  Digital TR Sensor Digital TR sensor circuits not reading PARK or NEUTRAL during KOEO/KOER.  KOEO/KOER not run in PARK or NEUTRAL; or Digital TR circuit failure. Rerun on-board diagnostic in PARK. KOEO/KOER. Go To PINPOINT TEST D .
P0102, P0103, P1100, P1101  MAF Sensor MAF sensor DTC.  MAF sensor system fails to operate in a normal manner, which may cause a transmission concern. High electronic pressure control pressure. Firm shifts and engagements. May flash TCIL. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
P0107  BARO BARO circuit failure.  BARO signal lower than expected. Firm shift feel, late shifts at altitude. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0108  BARO BARO circuit failure.  BARO signal higher or lower than expected. Firm shifts, late shifts at altitude. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P1703  BPP Switch Brake not actuated during On-Board Diagnostics.  Brake not cycled during KOER. Failed on or not connected - TCC will not engage at less than one-third throttle. Rerun On-Board Diagnostic and activate BPP switch. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0730, P0751  BPP BPP switch circuit failed.  BPP circuit failure. Failed off - TCC will not disengage when brake is applied. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0750 (2) SSA Shift solenoid circuit failure.  SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to SOLENOID OPERATION CHART . May flash MIL. Go To PINPOINT TEST A .
P0753  SSA Shift solenoid circuit failure.  SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to SOLENOID OPERATION CHART . May flash TCIL. Go To PINPOINT TEST A .
P0755 (2) SSB SSB circuit failure.  SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to the SOLENOID OPERATION CHART . May flash MIL. Go To PINPOINT TEST A .
P0758  SSB SSB circuit failure.  SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Improper gear selection depending on failure mode and transmission range selector lever position. Refer to the SOLENOID OPERATION CHART . May flash TCIL. Go To PINPOINT TEST A .
P1714  SSA SSA malfunction.  Mechanical failure of the solenoid detected. Improper gear selection depending on condition, mode and manual lever position. Refer to SOLENOID OPERATION CHART . May flash TCIL. May flash MIL. Go To PINPOINT TEST H .
P1715  SSB SSB malfunction.  Mechanical failure of the solenoid detected. Improper gear selection depending on condition, mode and manual lever position. Refer to SOLENOID OPERATION CHART . May flash MIL. Go To PINPOINT TEST H .
P1636  SSA, SSB Inductive signature chip communication error.  PCM has detected an internal error. Improper gear selection depending on condition, mode and manual lever position. Refer to SOLENOID OPERATION CHART . May flash MIL. Go To PINPOINT TEST H .
P1740  TCC TCC malfunction.  Mechanical failure of the solenoid detected. Harsh shift, may flash TCIL. Go To PINPOINT TEST H .
P1754 (2) Coast Clutch Solenoid (CCS) CCS circuit failure.  CCS failed to provide voltage drop across solenoid. Circuit open or shorted or PCM 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 causing eventual failure. May flash TCIL. Go To PINPOINT TEST G .
P0743 (2) TCC Solenoid TCC solenoid circuit failure.  TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Short circuit - engine stalls in DRIVE or MANUAL 2 at idle with brake applied. Open circuit - TCC never engaged. May flash MIL. Go To PINPOINT TEST C .
P0740 (2) TCC Solenoid TCC solenoid circuit failure.  TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during KOEO. Short circuit - engine stalls in DRIVE or MANUAL 2 at idle with brake applied. Open circuit - TCC never engaged. May flash TCIL. Go To PINPOINT TEST C .
P1746 (2) Electronic Pressure Control (EPC) PCM failure - electronic pressure control driver.  Current through EPC 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. Open circuit - causes maximum electronic pressure control, harsh engagements and shifts. May flash TCIL. Go To PINPOINT TEST E .
P1747 (2) Electronic Pressure Control (EPC) EPC circuit failure, shorted circuit or PCM.  Current through EPC 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). May flash MIL. Go To PINPOINT TEST E .
P1760  Electronic Pressure Control (EPC) EPC Signal Intermittent Short.  PCM has detected an intermittent short. Short circuit causes minimum EPC pressure (minimum capacity). May flash TCIL. Go To PINPOINT TEST E .
P0741 (1) TCC TCC slippage detected.  The PCM picked up an excessive amount of TCC slippage during normal vehicle operation. TCC slippage erratic or no torque converter clutch operation. May flash TCIL. Refer to DIAGNOSIS BY SYMPTOM .
P1744 (1) TCC TCC slippage detected.  The PCM picked up an excessive amount of TCC slippage during normal vehicle operation. TCC slippage erratic or no torque converter clutch operation. May flash MIL. Refer to DIAGNOSIS BY SYMPTOM .
P1280  Injection Control Pressure (ICP) Sensor ICP sensor circuit failure. Out of range low.  Open/grounded circuit, biased sensor or PCM. May result in firm shifts. Refer to the SELF-DIAGNOSTICS - 7.3L DIESEL article.
P1281  Injection Control Pressure (ICP) Sensor ICP sensor circuit failure. Out of range high.  Short circuit to 5 volt reference, biased sensor or PCM. May result in firm shifts. Refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE or SELF-DIAGNOSTICS - 7.3L DIESEL article.
P0715  TSS Insufficient Input from TSS sensor.  PCM Has detected a loss of TSS signal during operation. Harsh shifts. Set DTC, May flash TCIL, May flash MIL Schedule Operation. Go To PINPOINT TEST F .
P0717  TSS TSS Signal Intermittent  PCM has detected an intermittent TSS signal Harsh shifts, or erratic shifts. Set DTC, May flash TCIL. Go To PINPOINT TEST F .
P0718  TSS TSS Signal Noisy.  PCM has detected a noisy TSS sensor signal. Harsh shifts, or erratic shifts. Set DTC. May flash TCIL. Go To PINPOINT TEST F .
P0720  OSS Insufficient Input from OSS Sensor.  PCM has detected a loss of OSS signal during operation. Set DTC, Flash TCIL, May flash MIL. Go To PINPOINT TEST F .
P0721  OSS OSS Signal Noisy.  PCM has detected a noisy OSS sensor signal. Set DTC. May flash TCIL. Go To PINPOINT TEST F .
P0722  OSS Insufficient Input from OSS Sensor.  PCM has detected a loss of OSS signal during operation. Set DTC, Flash TCIL, May flash TCIL. Go To PINPOINT TEST F .
(1) May also be generated by other non-electronic-related transmission hardware condition.

(2) Output circuit check, generated only by electrical conditions.
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