Lincoln Town Car OBD 1 codes

OBD 1 Codes And Details



3-Digit EEC-IV Diagnostic Trouble Code (DTC) Definitions —Passenger Car
DIAGNOSTIC TROUBLE CODESDEFINITIONS
111System Pass
112Intake Air Temp (IAT) sensor circuit below minimum voltage/ 254°F indicated
113Intake Air Temp (IAT) sensor circuit above maximum voltage/ -40°F indicated
114Intake Air Temp (IAT) higher or lower than expected
116Engine Coolant Temp (ECT) higher or lower than expected
117Engine Coolant Temp (ECT) sensor circuit below minimum voltage/ 254°F indicated
118Engine Coolant Temp (ECT) sensor circuit above maximum voltage/ -40°F indicated
121Closed throttle voltage higher or lower than expected
121Indicates throttle position voltage inconsistent with the MAF sensor
122Throttle Position (TP) sensor circuit below minimum voltage
123Throttle Position (TP) sensor circuit above maximum voltage
124Throttle Position (TP) sensor voltage higher than expected
125Throttle Position (TP) sensor voltage lower than expected
126MAP/BARO sensor higher or lower than expected
128MAP sensor vacuum hose damaged/disconnected
129Insufficient MAP/Mass Air Flow (MAF) change during dynamic response test KOER
136Lack of Heated Oxygen Sensor (HO2S-2) switch during KOER, indicates lean (Bank #2)
137Lack of Heated Oxygen Sensor (HO2S-2) switch during KOER, indicates rich (Bank #2)
139No Heated Oxygen Sensor (HO2S-2) switches detected (Bank #2)
141Fuel system indicates lean
144No Heated Oxygen Sensor (HO2S-1) switches detected (Bank #1)
157Mass Air Flow (MAF) sensor circuit below minimum voltage
158Mass Air Flow (MAF) sensor circuit above maximum voltage
159Mass Air Flow (MAF) higher or lower than expected
167Insufficient throttle position change during dynamic response test KOER
171Fuel system at adaptive limits, Heated Oxygen Sensor (HO2S-1) unable to switch (Bank #1)
172Lack of Heated Oxygen Sensor (HO2S-1) switches, indicates lean (Bank #1)
173Lack of Heated Oxygen Sensor (HO2S-1) switches, indicates rich (Bank #1)
175Fuel system at adaptive limits, Heated Oxygen Sensor (HO2S-2) unable to switch (Bank #2)
176Lack of Heated Oxygen Sensor (HO2S-2) switches, indicates lean (Bank #2)
177Lack of Heated Oxygen Sensor (HO2S-2) switches, indicates rich (Bank #2)
179Fuel system at lean adaptive limit at part throttle, system rich (Bank #1)
181Fuel system at rich adaptive limit at part throttle, system lean (Bank #1)
184Mass Air Flow (MAF) higher than expected
185Mass Air Flow (MAF) lower than expected
186Injector pulsewidth higher than expected (with BARO sensor)
186Injector pulsewidth higher or MAF lower than expected (without BARO sensor)
187Injector pulsewidth lower than expected (with BARO sensor)
187Injector pulsewidth lower or MAF higher than expected (without BARO sensor)
188Fuel system at lean adaptive limit at part throttle, system rich (Bank #2)
189Fuel system at rich adaptive limit at part throttle, system lean (Bank #2)
193Flexible Fuel (FF) sensor circuit failure
211Profile Ignition Pickup (PIP) circuit failure
212Loss of Ignition Diagnostic Monitor (IDM) input to PCM/SPOUT circuit grounded
213SPOUT circuit open
214Cylinder Identification (CID) circuit failure
215PCM detected coil 1 primary circuit failure (EI)
216PCM detected coil 2 primary circuit failure (EI)
217PCM detected coil 3 primary circuit failure (EI)
218Loss of Ignition Diagnostic Monitor (IDM) signal-left side (dual plug EI)
219Spark timing defaulted to 10 degrees-SPOUT circuit open (EI)
221Spark timing error (EI)
222Loss of Ignition Diagnostic Monitor (IDM) signal-right side (dual plug EI)
223Loss of Dual Plug Inhibit (DPI) control (dual plug EI)
224PCM detected coil 1, 2, 3 or 4 primary circuit failure (dual plug EI)
225Knock not sensed during dynamic response test KOER
226Ignition Diagnostic Module (IDM) signal not received (EI)
232PCM detected coil 1, 2, 3 or 4 primary circuit failure (EI)
238PCM detected coil 4 primary circuit failure (EI)
241ICM to PCM IDM pulsewidth transmission error (EI)
244CID circuit fault present when cylinder balance test requested
311AIR system inoperative during KOER (Bank #1 w/dual HO2S)
312AIR misdirected during KOER
313AIR not bypassed during KOER
314AIR system inoperative during KOER (Bank #2 w/dual HO2S)
326EGR (PFE/DPFE) circuit voltage lower than expected
327EGR (EGRP/EVP/PFE/DPFE) circuit below minimum voltage
328EGR (EVP) closed valve voltage lower than expected
332Insufficient EGR flow detected (EGRP/EVP/PFE/DPFE)
334EGR (EVP) closed valve voltage higher than expected
335EGR (PFE/DPFE) sensor voltage higher or lower than expected during KOEO
336Exhaust pressure high/EGR (PFE/DPFE) circuit voltage higher than expected
337EGR (EGRP/EVP/PFE/DPFE) circuit above maximum voltage
338Engine Coolant Temperature (ECT) lower than expected (thermostat test)
339Engine Coolant Temperature (ECT) higher than expected (thermostat test)
341Octane adjust service pin open
381Frequent A/C clutch cycling
411Cannot control RPM during KOER low RPM check
412Cannot control RPM during KOER high RPM check
415Idle Air Control (IAC) system at maximum adaptive lower limit
416Idle Air Control (IAC) system at upper adaptive learning limit
452Insufficient input from Vehicle Speed Sensor (VSS) to PCM
453Servo leaking down (KOER IVSC test)
454Servo leaking up (KOER IVSC test)
455Insufficient RPM increase (KOER IVSC test)
456Insufficient RPM decrease (KOER IVSC test)
457Speed control command switch(s) circuit not functioning (KOEO IVSC test)
458Speed control command switch(s) stuck/circuit grounded (KOEO IVSC test)
459Speed control ground circuit open (KOEO IVSC test)
511PCM Read Only Memory (ROM) test failure KOEO
512PCM Keep Alive Memory (KAM) test failure
513PCM internal voltage failure (KOEO)
519Power Steering Pressure (PSP) switch circuit open KOEO
521Power Steering Pressure (PSP) switch circuit did not change states KOER
522Vehicle not in PARK or NEUTRAL during KOEO/PNP switch circuit open
524Low speed fuel pump circuit open—battery to PCM
525Indicates vehicle in gear/A/C on
527Park/Neutral Position (PNP) switch circuit open—A/C on KOEO
528Clutch Pedal Position (CPP) switch circuit failure
529Data Communication Link (DCL) or PCM circuit failure
532Cluster Control Assembly (CCA) circuit failure
533Data Communication Link (DCL) or Electronic Instrument Cluster (EIC) circuit failure
536Brake On/Off (BOO) circuit failure/not actuated during KOER
538Insufficient RPM change during KOER dynamic response test
538Invalid cylinder balance test due to throttle movement during test (SFI only)
538Invalid cylinder balance test due to CID circuit failure
539A/C on/Defrost on during Self-Test
542Fuel pump secondary circuit failure
543Fuel pump secondary circuit failure
551Idle Air Control (IAC) circuit failure KOEO
552Secondary Air Injection Bypass (AIRB) circuit failure KOEO
553Secondary Air Injection Diverter (AIRD) circuit failure KOEO
554Fuel Pressure Regulator Control (FPRC) circuit failure
556Fuel pump relay primary circuit failure
557Low speed fuel pump primary circuit failure
558EGR Vacuum Regulator (EVR) circuit failure KOEO
559Air Conditioning On (ACON) relay circuit failure KOEO
563High Fan Control (HFC) circuit failure KOEO
564Fan Control (FC) circuit failure KOEO
565Canister Purge (CANP) circuit failure KOEO
5663-4 shift solenoid circuit failure KOEO (A4LD)
567Speed Control Vent (SCVNT) circuit failure (KOEO IVSC test)
568Speed Control Vacuum (SCVAC) circuit failure (KOEO IVSC test)
569Auxiliary Canister Purge (CANP2) circuit failure KOEO
571EGRA solenoid circuit failure KOEO
572EGRV solenoid circuit failure KOEO
578A/C pressure sensor circuit shorted
579Insufficient A/C pressure change
581Power to Fan circuit over current
582Fan circuit open
583Power to Fuel pump over current
584VCRM Power ground circuit open (VCRM Pin 1)
585Power to A/C clutch over current
586A/C clutch circuit open
587Variable Control Relay Module (VCRM) communication failure
6171-2 shift error
6182-3 shift error
6193-4 shift error
621Shift Solenoid 1 (SS1) circuit failure KOEO
622Shift Solenoid 2 (SS2) circuit failure KOEO
623Transmission Control Indicator Light (TCIL) circuit failure
624Electronic Pressure Control (EPC) circuit failure
625Electronic Pressure Control (EPC) driver open in PCM
626Coast Clutch Solenoid (CCS) circuit failure KOEO
627Torque Converter Clutch (TCC) solenoid circuit failure
628Excessive converter clutch slippage
629Torque Converter Clutch (TCC) solenoid circuit failure
631Transmission Control Indicator Lamp (TCIL) circuit failure KOEO
632Transmission Control Switch (TCS) circuit did not change states during KOER
6334x4L switch closed during KOEO
634Transmission Range (TR) voltage higher or lower than expected
636Transmission Fluid Temp (TFT) higher or lower than expected
637Transmission Fluid Temp (TFT) sensor circuit above maximum voltage/ -40°F (-40°C) indicated/circuit open
638Transmission Fluid Temp (TFT) sensor circuit below minimum voltage/ 290°F (143°C) indicated/circuit shorted
639Insufficient input from Transmission Speed Sensor (TSS)
641Shift Solenoid 3 (SS3) circuit failure
643Torque Converter Clutch (TCC) circuit failure
645Incorrect gear ratio obtained for first gear
646Incorrect gear ratio obtained for second gear
647Incorrect gear ratio obtained for third gear
648Incorrect gear ratio obtained for fourth gear
649Electronic Pressure Control (EPC) higher or lower than expected
651Electronic Pressure Control (EPC) circuit failure
652Torque Converter Clutch (TCC) solenoid circuit failure
653Transmission Control Switch (TCS) did not change states during KOER
654Transmission Range (TR) sensor not indicating PARK during KOEO
656Torque Converter Clutch continuous slip error
657Transmission over temperature condition occurred
659High vehicle speed in park indicated
667Transmission Range sensor circuit voltage below minimum voltage
668Transmission Range circuit voltage above maximum voltage
675Transmission Range sensor circuit voltage out of range
998Hard fault present ****FMEM MODE****



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