Automatic Transmission Diagnosis DTCS

AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODE(DTC) LIST

DTC	Component	Description	Condition	Symptom	Perform Test
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.	Go To PINPOINT TEST C: DIGITAL TRANSMISSION RANGE (TR) SENSOR .
P1704	Digital TR	Digital TR circuit reading in between gear position during KOEO/KOER	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 C: DIGITAL TRANSMISSION RANGE (TR) SENSOR .
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. This DTC cannot be set by an incorrectly adjusted digital TR sensor.	Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position trans stuck in D or manual 2.	Go To PINPOINT TEST C: DIGITAL TRANSMISSION RANGE (TR) SENSOR .
P0708	Digital TR	Digital TR sensor circuit TR3A open	Digital TR sensor circuit TR3A reading 2.6v - 5.0v (open circuit). This DTC cannot be set by an incorrectly adjusted digital TR sensor.	Increase in EPC pressure. Defaults to (D) or D for all gear ranges.	Go To PINPOINT TEST C: DIGITAL TRANSMISSION RANGE (TR) SENSOR .
P1705	Digital TR sensor	Digital TR self test was not carried out in PARK or NEUTRAL	Vehicle not in PARK or NEUTRAL during onboard diagnostic.	Rerun on-board diagnostic in PARK or NEUTRAL.	Go To PINPOINT TEST C: DIGITAL TRANSMISSION RANGE (TR) SENSOR .
P0712	TFT, wiring, PCM	157°C (315°F) indicated TFT sensor circuit grounded	Voltage drop across TFT sensor exceeds scale set for temperature of 157°C (315°F).	Firm shift feel.	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P0713	TFT, wiring, PCM	-40 °C (-40 °F) indicated TFT sensor circuit open	Voltage drop across TFT sensor exceeds scale set for temperature -40°C (-40° F).	Firm shift feel.	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P1711	TFT	TFT out of onboard diagnostic range	Transmission not at operating temperature during on-board diagnostic.	Warm vehicle to normal operating temperature.	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P1713	TFT wiring PCM	TFT continually reading cold	TFT sensor in range low failure.	Firm shift feel. Substitute ECT for TFT	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P1718	TFT, wiring, PCM	TFT continually reading hot	TFT sensor in range high failure.	Firm shift feel. Substitute ECT for TFT	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P1783	TFT	Transmission over temperature condition indicated	Transmission fluid temperature exceeded 127°C (270°F).	Increase in EPC pressure.	Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR .
P0720	OSS	Insufficient input from output shaft speed sensor	PCM detected a loss of OSS signal during operation.	Harsh shifts, abnormal shift schedule, no torque converter clutch activation.	Go To PINPOINT TEST E: OUTPUT SHAFT SPEED (OSS) SENSORS .
P0721	OSS	OSS sensor signal noisy	PCM has detected an erratic OSS signal.	Harsh shifts, abnormal shift schedule, no torque converter clutch engagement.	Go To PINPOINT TEST E: OUTPUT SHAFT SPEED (OSS) SENSORS .
P0722	OSS wiring	Insufficient input from OSS	PCM has detected a loss of OSS signal.	Harsh shifts, abnormal shift schedule, no torque converter clutch engagement.	Go To PINPOINT TEST E: OUTPUT SHAFT SPEED (OSS) SENSORS .
P0741.Output circuit check, generated only by electrical symptoms	TCC, internal components	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 Transmission Control Indicator Lamp (TCIL).	GO to DIAGNOSIS BY SYMPTOM .
P0743.May also be generated by some other non-electric transmission hardware system	TCC, wiring, PCM	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 on-board diagnostic.	Short circuit: engine stalls in second (OD, 2 range) at low idle speeds with brake applied. Open circuit: torque converter clutch never engages. May flash TCIL.	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1746.Output circuit check, generated only by electrical symptoms P0960	EPC, wiring, PCM	EPC solenoid open circuit	Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded.	Open circuit causes maximum EPC pressure, harsh engagements and shifts.	Go To PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC) SOLENOID .
P1747.Output circuit check, generated only by electrical symptoms P0962	EPC, wiring, PCM	EPC solenoid circuit failure, shorted circuit or output driver	Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded.	Short circuit causes minimum EPC pressure (minimum capacity) and limits engine torque (alternate firm).	Go To PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC) SOLENOID .
P0963	EPC solenoid	EPC solenoid short to power (Vbat) circuit failure	Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded.	Maximum EPC pressure, harsh engagements and shifts.	Go To PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC) SOLENOID .
P0748.May also be generated by some other non-electric transmission hardware system	EPC solenoid	EPC solenoid circuit failure	Voltage through EPC solenoid is checked. An error will be noted if tolerance is exceeded.	Short circuit results in minimum EPC pressure (minimum capacity) and limits engine torque (alternate firm). Not all gear present. Open circuit: maximum PC A pressure, harsh engagements and shifts.	Go To PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC) SOLENOID .
P1760	EPC, wiring, PCM	EPC solenoid circuit failure, shorted circuit or output driver	PCM detected a loss of EPC during operation.	Unexpected reduction in engine torque.	Go To PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC) SOLENOID .
P0731	SSA, SSB, 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.	Use the Solenoid Operation Chart, refer to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0732	SSA, SSB, 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.	Use the Solenoid Operation Chart, refer to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0733	SSA, SSB, 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.	Use the Solenoid Operation Chart, refer to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0734	SSA, SSB, 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.	Use the Solenoid Operation Chart, refer to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0750.Output circuit check, generated only by electrical symptoms	SSA, wiring, PCM	SSA solenoid circuit failure	SSA circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during onboard diagnostic.	Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART .	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0753	SSA, wiring, PCM	SSA electrical circuit failure	SSA circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during onboard diagnostic.	Incorrect gear depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . Flashing Transmission Control Indicator Lamp (TCIL).	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0781.May also be generated by some other non-electric transmission hardware system	SSA 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).	REFER to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1714	SSA, internal components	SSA malfunction	Mechanical failure of the solenoid detected.	Incorrect gear selection depending on condition, mode and manual lever position. See SOLENOID OPERATION CHART .	Go To PINPOINT TEST F: SOLENOID MECHANICAL FAILURE .
P0755.Output circuit check, generated only by electrical symptoms	SSB, wiring, PCM	SSB solenoid circuit failure	SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during onboard diagnostic.	Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART .	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1715	SSB	SSB malfunction	Mechanical failure of the solenoid detected.	Incorrect gear selection depending on condition, mode and manual lever position. See SOLENOID OPERATION CHART .	Go To PINPOINT TEST F: SOLENOID MECHANICAL FAILURE .
P0758	SSB, wiring, PCM	SSB electrical circuit failure	SSB circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failure during onboard diagnostic.	Incorrect gear depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . Flashing Transmission Control Indicator Lamp (TCIL).	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0782.May also be generated by some other non-electric transmission hardware system	SSA, SSB 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).	REFER to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0783.May also be generated by some other non-electric transmission hardware system	SSA, SSB 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).	REFER to SOLENOID OPERATION CHART . Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P0740	TCC, wiring, PCM	TCC electrical circuit failure	TCC circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM driver failed during onboard diagnostic.	Short circuit: engine stalls in second (OD, 2 range) at low idle speeds with brake applied. Open circuit: torque converter clutch never engages. Flashing Transmission Control Indicator Lamp (TCIL).	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1740	TCC	TCC malfunction	Mechanical failure of the solenoid detected.	Failed ON - Engine stalls in 2nd (O/D, Manual 2 ranges) at low idle speeds with brake applied. Failed OFF - Torque Converter never applies.	Go To PINPOINT TEST F: SOLENOID MECHANICAL FAILURE .
P1741.May also be generated by some other non-electric transmission hardware system	TCC, internal components	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.	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1742	TCC, internal components	TCC solenoid failed ON	TCC solenoid has failed on by electric, mechanical or hydraulic concern.	Harsh shifts.	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1743	TCC, internal components	TCC solenoid failed ON	TCC solenoid has failed ON by electric, mechanical or hydraulic concern.	Harsh shifts.	Go To PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS .
P1744	TCC	TCC	The PCM picked up an excessive amount of TCC slippage during normal vehicle operation.	TCC slippage/erratic or no torque converter clutch operation.	GO to DIAGNOSIS BY SYMPTOM .
P1728	Trans	Transmission slip error	Excessive slip detected.	Transmission slippage, erratic or no torque converter operation.	GO to DIAGNOSIS BY SYMPTOM .