Automatic Transmission Electronic Controls DTCS
AUTOMATIC TRANSMISSION - F4E-III ELECTRONIC CONTROLS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Component | Description | Condition | Symptom | Action |
|---|---|---|---|---|---|
| P1000 | SYSTEM | OBD II drive cycle is not complete | - | Check of all systems is not completed since last memory clear. Carry out Transmission Drive Cycle Test. | DRIVE CYCLES |
| P0112 | IAT | IAT indicates 125°C (254°F) (grounded) | Voltage drop across IAT exceeds scale set for temperature 125°C (254°F). | Incorrect throttle pressure, either high or low, results in harsh or soft shifts. | SELF-DIAGNOSTICS DTC |
| P0113 | IAT | IAT indicates -40°C (-40°F) (open circuit) | Voltage drop across IAT exceeds scale set for temperature -40°C (-40°F). | Incorrect throttle pressure, either high or low, results in harsh or soft shifts. | SELF-DIAGNOSTICS DTC |
| P1116 | ECT | ECT out of OBD range | ECT temperature higher or lower than expected during KOEO and KOER. | Rerun on-board diagnostic at normal operating temperature. | SELF-DIAGNOSTICS DTC |
| P0117 | ECT | ECT indicates 125°C (254°F) | Voltage drop across ECT exceeds scale set for temperature 125°C (254°F) (grounded). | Torque converter clutch will always be off, resulting in reduced fuel economy. | SELF-DIAGNOSTICS DTC |
| P0118 | ECT | ECT indicates -40°C (-40°F) | Voltage drop across ECT exceeds scale set for temperature -40°C (-40°F) (open circuit). | Torque converter clutch will always be off, resulting in reduced fuel economy. | SELF-DIAGNOSTICS DTC |
| P1124 | TP | TP voltage high/low for on-board diagnostic | TP was not in the correct position for OBD. | Rerun at appropriate throttle position per application. | SELF-DIAGNOSTICS DTC |
| P0122, P0123, P1120 | TP | TP concern | PCM has detected an error that may cause a transmission concern. | Harsh engagements, firm shift feel, abnormal shift schedule, torque converter clutch does not engage, torque converter clutch cycling. | SELF-DIAGNOSTICS DTC |
| P0102, P0103, P1100, P1101 | MAF | MAF concerns | MAF system has a malfunction which may cause a transmission concern. | High or low throttle pressure, incorrect shift schedule. Incorrect torque converter clutch engagement scheduling. Symptoms similar to a TP failure. | SELF-DIAGNOSTICS DTC |
| P0300-P0308, P0320, P0340, P1351-P1364 | EI | EI systems concerns | EI system has a malfunction which may cause a transmission concern. | Harsh engagements and shifts, late WOT shifts, no torque converter clutch engagement. | SELF-DIAGNOSTICS DTC |
| P0501, P0503, P0500, P1501 | VSS | Insufficient VSS input | PCM detected a loss of vehicle speed signal during operation. | Torque converter clutch engages, shift engagement or disengagement (hunting) on grades. | SELF-DIAGNOSTICS DTC |
| P1703 | Brake pedal position (BPP) switch | Brake not actuated during on-board diagnostic | Brake not cycled during KOER. | Failed on or not connected, torque converter clutch will not engage at less than 1/3 throttle. | SELF-DIAGNOSTICS DTC |
| P1703 | Brake pedal position (BPP) switch | BPP switch circuit failed | Brake on/off circuit failure. | Failed off or not connected, torque converter clutch will not disengage when brake is applied. | SELF-DIAGNOSTICS DTC |
| P1460 | A/C | A/C clutch cycling pressure switch error | A/C or defrost on condition may result from A/C clutch being on during OBD. | DTC set during OBD, rerun with A/C off. Failed on, throttle pressure slightly low with A/C OFF. | SELF-DIAGNOSTICS DTC |
| P0781 P1731 (Both may also be generated by some other non-electric transmission hardware system) |
SS1 or internal parts | 1-2 shift error | Engine rpm drop not detected when 1-2 shift was commanded by PCM. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0782 P1732 (Both may also be generated by some other non-electric transmission hardware system) |
SS1, SS2 or internal parts | 2-3 shift error | Engine rpm drop not detected when 2-3 shift was commanded by PCM. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0783 P1733 (Both may also be generated by some other non-electric transmission hardware system) |
SS1, SS2, SS3 or internal parts | 3-4 shift error | Engine rpm drop not detected when 3-4 shift was commanded by PCM. | Incorrect gear selection depending on failure or mode and manual lever position. Shift errors may also be due to other internal transmission concerns (stuck valves, damaged friction material). | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0750 (Output circuit check, generated only by electrical symptoms) |
SS1 | SS1 solenoid circuit failure | SS1 circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during OBD. | Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . |
PINPOINT TEST A |
| P0755 (Output circuit check, generated only by electrical symptoms) |
SS2 | SS2 solenoid circuit failure | SS2 circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during OBD. | Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . |
PINPOINT TEST A |
| P0760 (May also be generated by some other non-electric transmission hardware system) |
SS3 | SS3 circuit failure | SS3 circuit fails to provide voltage drop across solenoid. Circuit open or shorter or PCM driver failure during OBD. | Incorrect gear selection depending on condition mode and gearshift lever position. See Solenoid ON/OFF Chart. | PINPOINT TEST A |
| P0741 (May also be generated by some other non-electric transmission hardware system) |
TCC | TCC slippage detected | The PCM picked up an excessive amount of slippage during normal vehicle operation. | TCC slippage/erratic or no torque converter clutch operation. Flashing TCIL. | PINPOINT TEST C |
| P1711 | TFT | TFT out of OBD range | Transmission not at operating temperature during OBD. | Warm vehicle to normal operating temperature. | PINPOINT TEST B |
| P1713 | TFT | TFT sensor circuit failure | TFT sensor in range failure low valve, stuck below 20°C (66°F). | Harsh shift feel. | PINPOINT TEST B |
| P0713 | TFT | -40°C (-40°F) indicated TFT sensor circuit open | Voltage drop across TFT sensor exceeds scale set for temperature -40°C (-40°F). | Harsh shift feel. | PINPOINT TEST B |
| P0712 | TFT | 157°C (315°F) indicated TFT sensor circuit grounded | Voltage drop across TFT sensor exceeds scale set for temperature of 157°C (315°F). | Harsh shift feel. | PINPOINT TEST B |
| P0715 | TSS | Insufficient input from turbine shaft speed sensor | PCM detected a loss of TSS signal during operation. | Harsh shifts, abnormal shift schedule, no torque converter clutch activation. | PINPOINT TEST F |
| P0743 (Output circuit check, generated only by electrical symptoms) |
TCC | TCC solenoid circuit failure during on-board diagnostic | TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during OBD. | Short circuit: engine stalls in second at low idle speeds with brake applied. Open circuit: torque converter clutch never engages. |
PINPOINT TEST C |
| P1705 | TR sensor | TR sensor not indicating Park during KOEO | OBD not run in Park. | Rerun OBD in Park. | PINPOINT TEST D |
| P1741 (May also be generated by some other non-electric transmission hardware system) |
TCC | Excessive torque converter clutch engagement error | Excessive variations in slip (engine speed surge) across the torque converter clutch. | Engine rpm oscillation is present in 3rd gear. | PINPOINT TEST C |
| P1783 | TFT | Transmission over heating condition indicated | Transmission fluid temperature exceeded 127°C (270°F). | Increase in throttle pressure. | PINPOINT TEST B |
| P0707 | TR sensor | TR sensor circuit below minimum voltage | TR sensor, circuit or PCM shorted or grounded. | Increase in throttle pressure. | PINPOINT TEST D |
| P0708 | TR sensor | TR sensor circuit above maximum voltage | TR sensor, circuit or PCM indicates open. | Increase in throttle pressure. | PINPOINT TEST D |
| P0751 | SS1 | Shift solenoid #1 functional failure | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode gearshift lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0756 | SS2 | Shift solenoid #2 functional failure | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode and gearshift lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0761 | SS3 | Shift solenoid #3 function failure | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode gearshift lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P0731 (May also be generated by some other non-electric transmission hardware system) |
SSA, SSB, or internal parts | First gear failure. | No first gear. | Incorrect gear selection depending on condition mode and manual lever position: see Solenoid ON/OFF Chart. Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material). | PINPOINT TEST A |
| P0732 (May also be generated by some other non-electric transmission hardware system) |
SSA, SSB, or internal parts | Second gear failure. | No second gear. | Incorrect gear selection depending on condition mode and manual lever position: see solenoid ON/OFF chart. Shift errors may also be due to other internal trnasaxle concerns (such as stuck valves, damaged friction material). | PINPOINT TEST A |
| P0733 (May also be generated by some other non-electric transmission hardware system) |
SSA, SSB, or internal parts | Third gear failure. | No third gear. | Incorrect gear selection depending on condition mode and manual lever position: see solenoid ON/OFF chart. Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material). | PINPOINT TEST A |
| P0734 (May also be generated by some other non-electric transmission hardware system) |
SSA, SSB, or internal parts | Fourth gear failure. | No fourth gear. | Incorrect gear selection depending on condition mode and manual lever position: see Solenoid ON/OFF Chart. Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material). | PINPOINT TEST A |
| P1742 | TCC | TCC solenoid failed ON (California only) | TCC solenoid has failed ON by electric, mechanical or hydraulic concern. | Harsh shift feel. | PINPOINT TEST C |
| P1743 | TCC | TCC solenoid failed ON | TCC solenoid has failed ON by electric, mechanical or hydraulic concern. | Harsh shift feel. | PINPOINT TEST C |
| P1744 | Transmission | Transmission/TCC slippage detected | The PCM picked up an excessive amount of slippage while in 4th gear and TCC commanded ON. | Transmission slippage/erratic or no torque converter clutch operation. | Go to Line Pressure Test. If OK, Go to PINPOINT TEST C . |
| P1751 (May also be generated by some other non-electric transmission hardware system) |
SS1 | Shift solenoid #1 functional failure (California only) | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode and manual lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P1756 (May also be generated by some other non-electric transmission hardware system) |
SS2 | Shift solenoid #2 functional failure (California only) | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode and manual lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P1761 | SS3 | Shift solenoid #3 functional failure (California only) | Mechanical or hydraulic failure of the shift solenoid. | Incorrect gear selection depending on failure mode gearshift lever position. | Go to SOLENOID OPERATION CHART
. Go to PINPOINT TEST A . |
| P1728 | Trans | Trans slip error | The PCM has detected an excessive amount of slippage during normal operation. | Transmission slippage/erratic or no torque converter clutch operation. | Go to DIAGNOSIS BY SYMPTOM . |
| P1767 | TCC | TCC solenoid circuit failure during OBD Test | TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during OBD Test. | Short circuit: engine stalls in second (O/D, 2 range) at low idle speeds with brake applied. Open circuit: torque converter clutch never engages. |
PINPOINT TEST C |
| P0721 | TSS | Turbine shaft speed sensor signal noisy | PCM has detected an erratic TSS signal. | Harsh shifts, abnormal shift schedule, no torque converter clutch engagement. | PINPOINT TEST F |
| P0705 | TR sensor | TR sensor malfunction | TR sensor, circuit or PCM indicates short. | Increase in throttle pressure. | PINPOINT TEST D |
| P0746 | EPC | EPC solenoid performance | EPC solenoid hydraulic/mechanical failure. | Harsh shift feel. | PINPOINT TEST E |
| P1745 | EPC | EPC solenoid circuit failure | EPC solenoid, circuit or PCM shorted or open. | Soft/harsh shift feel. | PINPOINT TEST E |
| P1746 | EPC | EPC solenoid circuit failure | EPC solenoid, circuit or PCM indicates open. | Harsh shift feel. | PINPOINT TEST E |
| P1747, P1760 | EPC | EPC solenoid circuit failure | EPC solenoid, circuit or PCM indicates short. | Soft shift feel. | PINPOINT TEST E |
| P1749 | EPC | EPC solenoid circuit failure | EPC solenoid, circuit or PCM grounded. | Harsh shift feel. | PINPOINT TEST E |