| P0102, P0103, P1100, P1101 |
MAF |
MAF concerns |
MAF system has a malfunction which may cause a transmission concern. |
High or low EPC pressure, incorrect shift schedule. Incorrect torque converter clutch engagement scheduling. Symptoms similar to a throttle position (TP) failure. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0112 |
IAT |
IAT indicates 125°C (257°F) (grounded) |
Voltage drop across IAT exceeds scale set for temperature 125°C (257°F). |
Incorrect EPC pressure, either high or low, results in harsh or soft shifts. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0113 |
IAT |
IAT indicates -40°C (-40°F) (open circuit) |
Voltage drop across IAT exceeds scale set for temperature -40°C (-40°F). |
Incorrect EPC pressure, either high or low, results in harsh or soft shifts. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0114 |
IAT |
IAT out of on-board diagnostic range |
IAT temperature higher or lower than expected during KOEO and KOER. |
Rerun on-board diagnostic at normal operating temperature. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0117 |
ECT |
ECT indicates 125°C (257°F) |
Voltage drop across ECT exceeds scale set for temperature 125°C (257°F) (grounded). |
Torque converter clutch will always be off, resulting in reduced fuel economy. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| 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. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| 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. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0300-P0308, P0320, P0340P1351-P1364 |
Electronic Ignition (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. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P0503, P0500, P1500, P1502 |
VSS |
Insufficient VSS input |
PCM detected a loss of vehicle speed signal during operation. |
Possible loss of speedometer or speedometer fluctuation. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| 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 . |
| 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 . |
| 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 . |
| P0707 |
Digital TR sensor, wiring, PCM |
Digital TR sensor circuit below minimum voltage |
Digital TR sensor, circuit or PCM shorted or grounded. |
Increase in EPC pressure. |
Go To PINPOINT TEST C . |
| 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 . |
| P1705 |
Digital TR sensor |
Digital TR self test was not carried out in PARK or NEUTRAL |
Vehicle not in PARK or NEUTRAL during on-board diagnostic. |
Rerun on-board diagnostic in PARK or NEUTRAL. |
Go To PINPOINT TEST C . |
| 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 . |
| 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 . |
| P1710 |
TFT |
TFT sensor in range malfunction |
PCM detected TFT not changing. |
Firm shift, TCIL flashing, increase in EPC. |
Go To PINPOINT TEST B . |
| P1711 |
TFT |
TFT out of on-board diagnostic range |
Transmission not at operating temperature during on-board diagnostic. |
Warm vehicle to normal operating temperature. |
Go To PINPOINT TEST B . |
| 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 . |
| 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 . |
| P1783 |
TFT |
Transmission over temperature condition indicated |
Transmission fluid temperature exceeded 127°C (270°F). |
Increase in EPC pressure. |
Go To PINPOINT TEST B . |
| 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 . |
| 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 . |
| 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 . |
| P0741 |
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 |
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. |
Go To PINPOINT TEST A . |
| P1746 |
EPC, wiring, PCM |
Shorted PCM output driver |
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 . |
| P1747 |
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 . |
| 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 . |
| P0750 |
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 on-board diagnostic. |
Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off Chart. |
Go To PINPOINT TEST A . |
| 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 on-board 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 . |
| P0751 |
SSA, wiring, PCM |
Shift solenoid A functional failure |
Mechanical or hydraulic failure of the shift solenoid. |
Incorrect gear selection depending on failure mode manual lever position. |
REFER to SOLENOID OPERATION CHART . Go To PINPOINT TEST A . |
| P0781 |
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 . |
| 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 . |
| P0755 |
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 on-board diagnostic. |
Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off Chart. |
Go To PINPOINT TEST A . |
| P0756 |
SSB |
Shift solenoid B functional failure |
Mechanical or hydraulic failure of the shift solenoid. |
Incorrect gear selection depending on failure mode and manual lever position. |
REFER to SOLENOID OPERATION CHART . Go To PINPOINT TEST A . |
| 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 . |
| 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 on-board 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 . |
| P0782 |
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 . |
| P0783 |
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 . |
| P1116 |
ECT |
ECT out of on-board diagnostic range |
ECT temperature higher or lower than expected during KOEO and KOER. |
Rerun on-board diagnostic at normal operating temperature. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P1124 |
TP |
TP voltage high/low for on-board diagnostic |
TP was not in the correct position for on-board diagnostic. |
Rerun at appropriate throttle position per application. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| 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 on-board diagnostic. |
DTC set during on-board diagnostic, repeat with A/C off. Failed on, EPC pressure slightly low with A/C OFF. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P1636 |
PCM |
PCM detected internal error |
- |
- |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P1703 |
BPP |
BPP switch circuit failed. |
Brake ON/OFF circuit failure. |
Failed ON or not connected - torque converter clutch will not engage at less than 1/3 throttle. Failed OFF or not connected - torque converter clutch will not disengage when brake is applied. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P1703 |
BPP |
Brake not actuated during on-board diagnostic |
Brake not cycled during KOER. |
Failed OFF or not connected - torque converter clutch will not engage at less than 1/3 throttle. Failed OFF or not connected - torque converter clutch will not disengage when brake is applied. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| 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 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. Flashing Transmission Control Indicator Lamp (TCIL). |
Go To PINPOINT TEST A . |
| 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 . |
| P1741 |
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 . |
| 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 . |
| 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 . |
| 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 . |
| 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 never engages. |
Go To PINPOINT TEST A . |
| P1780 |
TCS |
TCS not changing states |
TCS not cycled during self-test. TCS circuit open or shorted. |
Rerun on-board diagnostic and cycle switch. No OD cancel when switch is cycled. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| - |
TCIL |
TCIL circuit failure |
TCIL circuit open or shorted. |
Failed on, OD cancel mode on. No flashing TCIL for EPC failure or sensor. Failed off, OD cancel mode never indicated. No flashing TCIL for EPC sensor failure. |
REFER to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. |
| P1709 |
PNP switch |
PNP switch out of self-test range |
Vehicle not in PARK or NEUTRAL during on-board diagnostic. |
Rerun on-board diagnostic in PARK or NEUTRAL. |
Go To PINPOINT TEST C . |