Lincoln LS Fault Codes
Lincoln LS Fault Codes
Lincoln LS Fault Codes
Page 1 of 3
IAT
IAT indicates 125 C (254 F) (grounded) IAT indicates -40 C (-40 F) (open circuit) IAT out of on-board diagnostic range
Voltage drop across IAT exceeds scale set for temperature 125 C (254 F). Voltage drop across IAT exceeds scale set for temperature -40 C (-40 F). IAT temperature higher or lower than expected during KOEO and KOER.
REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual.
P0113
IAT
ECT out of on-board ECT temperature higher or lower than diagnostic range expected during KOEO and KOER. ECT indicates 125 C (254 F) Voltage drop across ECT exceeds scale set for temperature 125 C (254 F) (grounded).
P0118
ECT
ECT indicates -40 C Voltage drop across ECT exceeds (-40 F) scale set for temperature -40 C (-40 F) (open circuit). TP concern
P0121, P0122, P0123, P1120, P1121, P1125, P1124 P0300P0308, P0320, P0340, P1351P1364 P0503, P0500, P0705
TP
PCM has detected an error. This error Harsh engagements, firm shift feel, may cause a transmission concern. abnormal shift schedule, torque converter clutch does not engage. Torque converter clutch cycling.
EI
EI concerns
Harsh engagements and shifts, late WOT shifts, no torque converter clutch engagement.
ABS
PCM detected a loss of vehicle speed signal through SCP link from ABS.
Digital TR circuits, indicating an invalid Increase in control pressure (harsh shifts). pattern in TR_D. Condition caused by Defaults to D5 or invalid position. 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. Digital TR sensor circuit TR3A reading Increase in PC pressure. Defaults to D5 for 2.6v - 5.0v (open circuit). This DTC all gear positions. cannot be set by an incorrectly adjusted digital TR sensor. Voltage drop across TFT sensor exceeds scale set for temperature of 157 C (315 F). Voltage drop across TFT sensor exceeds scale set for temperature 40 C (-40 F). PCM detected a loss of TSS signal during operation. Firm shift feel.
P0708
Go To Pinpoint Test C.
P0712
TFT
157 C (315 F) indicated TFT sensor circuit grounded -40 C (-40 F) indicated TFT sensor circuit open Insufficient input from turbine shaft speed sensor
Go To Pinpoint Test B.
P0713
TFT
Go To Pinpoint Test B.
P0715
TSS
Harsh shifts, harsh torque converter clutch activation, and harsh engagement.
Go To Pinpoint Test E.
P0717
TSS
Turbine shaft speed PCM has detected an intermittent TSS Harsh shifts, harsh torque converter clutch sensor signal signal. activation, and harsh engagement. intermittent. Turbine shaft speed PCM has detected a noisy TSS signal. Harsh shifts, harsh torque converter clutch sensor signal noisy. activation, and harsh engagement. Insufficient input from OSS sensor Output shaft speed sensor signal noisy Output shaft speed sensor signal intermittent PCM detected a loss of OSS signal during operation. PCM has detected an erratic OSS signal. PCM has detected an intermittent OSS signal. No 1st gear. Possible abnormal shift schedule. Abnormal shift schedule. Abnormal shift schedule.
Go To Pinpoint Test E.
P0731**
Incorrect gear selection depending on REFER to the Solenoid On/Off Charts. Go To failure or mode and manual lever position. Pinpoint Test A. 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.
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Page 2 of 3
P0732**
No 2nd gear.
Incorrect gear selection depending on REFER to the Solenoid On/Off Charts. Go To failure or mode and manual lever position. Pinpoint Test A. 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. Incorrect gear selection depending on REFER to the Solenoid On/Off Charts. Go To Pinpoint Test A. 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. Incorrect gear selection depending on REFER to the Solenoid On/Off Charts. Go To failure or mode and manual lever position. Pinpoint Test A. 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. 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 etc.). Engine rpm could be higher or lower than expected. REFER to the Solenoid On/Off Chart. Go To Pinpoint Test A.
P0733**
No 3rd gear.
P0734**
No 4th gear.
P0735
No 5th gear.
P0741**
TCC
The PCM picked up an excessive TCC slippage/erratic or no torque converter REFER to the Diagnosis by Symptom Index amount of TCC slippage during normal clutch operation. inDiagnosis By Symptom. vehicle operation. Short circuit converter clutch always engage. Open circuit torque converter clutch never engages. Short circuit causes minimum PCA pressure (minimum capacity) and limits engine torque (alternate firm). Slips in gear and third gear incorrect. Go To Pinpoint Test A.
P0743*
TCC
TCC solenoid circuit TCC solenoid circuit fails to provide failure during onvoltage drop across solenoid. Circuit board diagnostic open or shorted or PCM driver failure during on-board diagnostics. PCA solenoid circuit Voltage through PCA solenoid is failure, shorted checked. An error will be noted if circuit tolerance is exceeded. SSA solenoid circuit SSA circuit failed to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSA solenoid circuit SSA circuit failed to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSB solenoid circuit SSB circuit fails to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSB solenoid circuit SSB circuit fails to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSC solenoid circuit SSC circuit failed to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSC solenoid circuit SSC circuit failed to provide voltage failure drop across solenoid. Circuit open or shorted or PCM driver failure during on-board diagnostic. SSD solenoid circuit SSD circuit failed to provide voltage failure drop across solenoid. Circuit open, shorted or PCM driver circuit failure during on-board diagnostics. SSD solenoid circuit SSD circuit failed to provide voltage failure drop across solenoid. Circuit open, shorted or PCM driver circuit failure during on-board diagnostics. PCB solenoid circuit Voltage through PCB solenoid is failure, shorted checked. An error will be noted if circuit tolerance is exceeded. PCB solenoid Intermittent short to ground Voltage through PCB solenoid is checked. An error will be noted if tolerance is exceeded.
P0745, P1747**
PCA
Go To Pinpoint Test D.
P0750*
SSA
No fourth or fifth gear (short) or no first gear Go To Pinpoint Test A. (open). Will flash MIL.
P0753*
SSA
No fourth or fifth gear (short) or no first gear Go To Pinpoint Test A. (open). Will flash TCIL.
P0755*
SSB
Go To Pinpoint Test A.
P0758*
SSB
Go To Pinpoint Test A.
P0760*
SSC
Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off chart. Will flash MIL. Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off chart. Will flash TCIL. No engine braking in manual gears. Will flash MIL.
Go To Pinpoint Test A.
P0763*
SSC
Go To Pinpoint Test A.
P0765
SSD
Go To Pinpoint Test A.
P0768
SSD
Go To Pinpoint Test A.
P0775, P1789**
PCB
Short circuit causes minimum PCB pressure (minimum capacity) and limits engine torque (alternate firm). Zero PCB no second and fifth gear. Short circuit causes minimum PCB pressure (minimum capacity) and limits engine torque (alternate firm). Zero PCB no second and fifth gear. Harsh shifts (2-3).
Go To Pinpoint Test D.
P0779
PCB
Go To Pinpoint Test D.
P0791
ISS
Intermediate shaft PCM has detected a loss of the ISS speed sensor signal signal. failure. Intermediate shaft PCM has detected an intermittent ISS speed sensor signal signal. intermittent PCC solenoid circuit Voltage through PCC solenoid is failure, shorted checked. An error will be noted if circuit tolerance is exceeded. PCC solenoid circuit Voltage through PCC solenoid is open checked. Error is noted if tolerance is exceeded. PCC solenoid Voltage through PCC solenoid is
Go To Pinpoint Test E.
P0794
ISS
Go To Pinpoint Test E.
PCC
Go To Pinpoint Test D.
PCC
Open circuit causes maximum PCC pressure, harsh engagements and shifts. Short circuit causes minimum PCC
Go To Pinpoint Test D.
P0799
PCC
Go To Pinpoint Test D.
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Page 3 of 3
pressure (minimum capacity) and limits engine torque (alternate firm). Incorrect gear ratio in fourth and fifth gear. No or improper illumination of the J-gate position. May not be able to shift in manual mode. REFER toSection 307-05. REFER toSection 307-05. Go To Pinpoint Test G.
J-GATE circuit input PCM has detected incorrect J gate signal failed. voltage. SST +/- circuit input PCM has detected an incorrect signal failed. voltage SST input. Reverse pressure switch circuit input signal failed.
PCM has detected incorrect voltage at No engine braking in manual third or fourth the reverse pressure switch input. gear. Rerun at appropriate throttle position per application.
P1124
TP
TP voltage high/low TP was not in the correct position for for on-board on-board diagnostic. diagnostic. A/C clutch cycling pressure switch error
REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. REFER to thePowertrain Control/Emissions Diagnosis (PC/ED) manual. INSTALL a new PCM. If other solenoid DTCs are present, diagnose and repair them first. CLEAR DTCs and drive vehicle. If P1700 returns, disassemble transmission and inspect the direct one-way clutch. Repair as required. CLEAR DTC. Drive vehicle and verify repair. Go To Pinpoint Test C.
P1460
A/C
A/C or defrost ON condition may result DTC set during on-board diagnostic from A/C clutch being ON during onrerun with A/C OFF. Failed ON EPC board diagnostic. pressure slightly low with A/C OFF.
P1636 P1700
SSx TRANS
SSx ISIG PCM has detected an error with the communication error ISIG chip.
Transmission Internal component failure. Direct one- Failed a neutral condition. FMEM becomes indeterminate failure way clutch failure. active engine rpm limited to 4000 rpms. No 1st, 3rd, or 4th gear in automatic mode. Other DTCs that may set P1700: P0745, P1747, P1760, P1714, P1715, P0750, P0755. See P0705, P0708 conditions. See P0705, P0708 symptoms.
P1702
Digital TR Digital TR signal intermittent, code P0705, P0708 are set. BPP Brake not actuated during on-board diagnostic KOER
P1703
Failed ON or not connected torque REFER to thePowertrain Control/Emissions converter clutch will not engage at less than Diagnosis (PC/ED) manual. 1/3 throttle. Failed OFF or not connected torque converter clutch will not disengage when brake is applied. Failed ON or not connected torque REFER to thePowertrain Control/Emissions converter clutch will not engage at less than Diagnosis (PC/ED) manual. 1/3 throttle. Failed OFF or not connected torque converter clutch will not disengage when brake is applied.
P1703
BPP
P1704
Digital TR sensor or shift cable Wrong commanded PC pressure. Digital TR Go To Pinpoint Test C. incorrectly adjusted or digital TR circuit reading the wrong gear position. (i.e., in failure. overdrive position, transmission stuck in manual three for base shifter and four for SST shifter). DTC is set. RERUN KOEO/KOER in PARK or NEUTRAL or Go To Pinpoint Test C.
P1705
Digital TR Digital TR not in KOEO/KOER not run in PARK or PARK or NEUTRAL NEUTRAL, or digital TR circuit failure. during KOEO/KOER. TFT TFT out of on-board Transmission not at operating diagnostic range temperature during on-board diagnostic. No change in TFT low range SSA inoperative SSB inoperative SSC inoperative PCM has detected no TFT change at low range during operation. Mechanical failure of the solenoid detected. Mechanical failure of the solenoid detected. Mechanical failure of the solenoid detected. Mechanical failure of the solenoid detected. PCM has detected no TFT change at high range during operation. Mechanical failure of the solenoid detected.
P1711
Warm or cool vehicle to normal operating temperature. Go To Pinpoint Test B. Go To Pinpoint Test B.
Increase EPC, incorrect TCC engagement schedule, harsh engagement, harsh shifts.
No fourth or fifth gear (short) or no first gear Go To Pinpoint Test F. (open). No first gear (short) or no third gear (open) Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off Chart. Incorrect gear selection depending on condition, mode and manual lever position. See the Solenoid On/Off Chart. Increase EPC, incorrect TCC engagement schedule, harsh engagement, harsh shifts. Failed ON Converter clutch always on. Failed OFF torque converter never applies. Open circuit causes maximum PCA pressure, harsh engagements and shifts. Short circuit causes minimum PCA pressure (minimum capacity) and limits engine torque (alternate firm). Slips in gear, third incorrect. No overdrive cancel when range selector is moved Increase in control pressure. Go To Pinpoint Test F. Go To Pinpoint Test F.
P1717
SSD
SSD inoperative
Go To Pinpoint Test F.
P1718 P1740
TFT TCC
P1746**
PCA
PCA solenoid circuit Voltage through PCA solenoid is open checked. Error is noted if tolerance is exceeded. PCA solenoid Intermittent short to ground TCS input incorrect per selected position Transmission overtemp condition indicated Voltage through PCA solenoid is checked. An error will be noted if tolerance is exceeded. TCS voltage incorrect.
Go To Pinpoint Test D.
P1760
PCA
Go To Pinpoint Test D.
P1780
TCS
RERUN on-board diagnostic and cycle switch. REFER toSection 307-05. Go To Pinpoint Test B.
P1783
TFT
P1788**
PCB
PCB solenoid circuit Voltage through PCB solenoid is open checked. Error is noted if tolerance is exceeded.
Open circuit causes maximum PCB pressure, harsh engagements and shifts.
Go To Pinpoint Test D.
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