Automatic Transmission - 4F27E Electronic Controls DTCS
DIAGNOSTIC TROUBLE CODE CHARTS
| DTC | Component | Description | Condition | Symptom | Action/Refer To |
|---|---|---|---|---|---|
| P0705 | TR Sensor | TR Circuit failure | TR circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in P/N, D, R, 2 or 1 circuits. Open in the tail lamp ground circuit. This DTC can be set by an incorrectly adjusted TR sensor. | Increase in control pressure (harsh shifts). Defaults to D for an invalid position. |
Inspect the tail lamp ground circuit. C |
| P0712 | TFT | 157°C (315°F) indicated TFT sensor circuit grounded | Voltage drop across TFT sensor too low for scale set for temperature 157°C (315°F). | Possible firm shift feel. | B |
| P0713 | TFT | -40°C (-40°F) indicated TFT sensor circuit open | Voltage drop across TFT sensor too high for scale set temperature -40 °C (- 40°F). | Possible firm shift feel. | B |
| P0715 | TSS | Insufficient input from turbine shaft speed sensor | PCM detected a loss of TSS signal during operation. | Harsh shifts, no torque converter clutch activation, and harsh engagement. | E |
| P0717 | TSS | Turbine shaft speed sensor signal intermittent | PCM detected a loss of TSS signal during operation. | Harsh shifts, no torque converter clutch activation, and harsh engagement. | E |
| P0718 | TSS | TSS sensor signal erratic | PCM has detected an erratic TSS signal | Harsh shifts, no torque converter clutch activation, and harsh engagement. | E |
| P0720 | OSS | Insufficient input from OSS sensor. | PCM detected a loss of OSS signal during operation. | Harsh shift, possible abnormal shift schedule. | E |
| P0721 | OSS | OSS sensor signal noisy | PCM has detected an erratic OSS signal. | Harsh shift, abnormal shift schedule. | E |
| P0722 | OSS | OSS sensor signal intermittent | PCM has detected an intermittent OSS signal. | Harsh shift, abnormal shift schedule. | E |
| P0731 | SSA, SSB, SSC or internal parts | 1st gear error | No 1st gear | 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). Engine RPM could be higher or lower than expected. | Refer to SOLENOID OPERATION CHART - CONVERTER ENGAGED
and/or SOLENOID OPERATION CHART - CONVERTER DISENGAGED
. A |
| P0732 | SSA, SSB, SSC or internal parts | 2nd gear error | No 2nd gear. | 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). Engine RPM could be higher or lower than expected. | Refer to SOLENOID OPERATION CHART - CONVERTER ENGAGED
and/or SOLENOID OPERATION CHART - CONVERTER DISENGAGED
. A |
| P0733 | SSA, SSB, SSC or internal parts | 3rd gear error | No 3rd gear. | 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). Engine RPM could be higher or lower than expected. | Refer to SOLENOID OPERATION CHART - CONVERTER ENGAGED
and/or SOLENOID OPERATION CHART - CONVERTER DISENGAGED
. A |
| P0734 | SSA, SSB, SSC or internal parts | 4th gear error | No 4th gear. | 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). Engine RPM could be higher or lower than expected. | Refer to SOLENOID OPERATION CHART - CONVERTER ENGAGED
and/or SOLENOID OPERATION CHART - CONVERTER DISENGAGED
. A |
| P0741 | 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. | DIAGNOSIS BY SYMPTOM |
| P0750 | SSA | SSA solenoid circuit failure | SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on -board diagnostic. | No reverse gear (short) or no fourth gear (open). | A |
| P0751 | SSA | SSA functional failure | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | DIAGNOSIS BY SYMPTOM |
| P0755 | SSB | SSB solenoid circuit failure | SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on -board diagnostic. | Not all gears present. No converter clutch apply in third and fourth gears. | A |
| P0756 | SSB | SSB functional failure | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. No converter clutch apply in third and fourth gears. | DIAGNOSIS BY SYMPTOM |
| P0760 | SSC | SSC solenoid circuit failure | SSC circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during on -board diagnostic. |
Not all gears present. | A |
| P0761 | SSC | SSC functional failure | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | A |
| P0765 | SSD | SSD solenoid circuit failure | SSD circuit fails to provide voltage drop across solenoid. Circuit open, shorted or PCM driver circuit failure during onboard diagnostics. |
Not all gears present. | A |
| P0766 | SSD | SSD functional failure | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | A |
| P0770 | SSE | SSE solenoid circuit failure | SSE circuit failed to provide voltage drop across solenoid. Circuit open. Shorted or PCM driver circuit failed during on-board diagnostics. |
Not all gears present. | A |
| P0771 | SSE | SSE functional failure | Mechanical or hydraulic failure of the shift solenoid. | Not all gears present. | A |
| P1700 | - | Undetermined failure | Transmission failed to neutral. | Transmission functional failure. | When this code is shown in conjunction with other codes, repair the other codes first, then retest. If this code reappears, Refer to DIAGNOSIS BY SYMPTOM . |
| P1705 | TR Sensor | TR not in PARK or NEUTRAL during KOEO/KOER. | KOEO/KOER not run in PARK or NEUTRAL; or TR circuit failure. | Harsh shifts or engagements. | C Rerun KOEO/KOER in PARK or NEUTRAL. |
| P1710 | TFT | Stuck in midrange. | PCM never detects a change in fluid temperature. | Occasional hard shifts. | B |
| P1711 | TFT | TFT out of onboard diagnostic range | Transmission not at operating temperature during on-board diagnostic. | DTC set-vehicle cold or overheated. | Warm or cool vehicle to normal operating temperature. B |
| P1713 | TFT | No change in TFT - low range | PCM has detected no TFT change at low range during operation. | Incorrect TCC engagement schedule, harsh engagement, harsh shifts. | B |
| P1718 | TFT | No change in TFT - high range | PCM has detected no TFT change at high range during operation. | Incorrect TCC engagement schedule, harsh engagement, harsh shifts. | B |
| P1746 | EPC | EPC solenoid circuit open | Voltage through EPC solenoid is checked. Error is noted if tolerance is exceeded. | Open circuit-causes maximum EPC pressure, harsh engagements and shifts. | D |
| P1747 | EPC | EPC solenoid circuit failure, shorted circuit | Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded. | Short circuit causes maximum EPC pressure, harsh engagement and shifts. | D |
| P1780 | TCS | TCS input incorrect for selected position | TCS voltage incorrect | No overdrive cancel when lever is moved. | Rerun on-board diagnostic and cycle switch. Refer to DIAGNOSIS BY SYMPTOM . |
| P1783 | TFT | Transmission overtemp condition indicated | Transmission fluid temperature exceeded 135°C (275°F). | Increase in control pressure. | B |