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Diagnostic Trouble Code Reference Charts

DTC REFERENCE CHART

DTC Description Circuit Test/Step: KOEO Circuit Test/Step: KOER Circuit Test/Step: CONT.
No Code  No Codes/Codes Not Listed QA1 QA1 QA1
111 System Pass Pass Pass Pass
112  Intake Air Temperature Sensor Circuit Low Input DA20 - DA90
113  Intake Air Temperature Sensor Circuit High Input DA10 - DA90
114  Intake Air Temperature Sensor Circuit Voltage Higher Or Lower Than Expected DA1 DA1 -
116  Engine Coolant Temperature Sensor Circuit Voltage Higher Or Lower Than Expected DA1 DA1 -
117  Engine Coolant Temperature Sensor Circuit Low Input DA20 - DA90
118  Engine Coolant Temperature Sensor Circuit High Input DA10 - DA90
121 Throttle Position Sensor Fault DH 2 DH 1 G 1
122  Throttle Position Sensor Circuit Low Input DH10 - DH94
123  Throttle Position Sensor Circuit High Input DH3 - DH90
124  Throttle Position Sensor Voltage Higher Than Expected - - G1
125  Throttle Position Sensor Voltage Lower Than Expected - - G1
126  Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Voltage Higher Or Lower Than Expected DF1 DF1 DF90
128  Manifold Absolute Pressure Sensor Vacuum Hose Damaged/Disconnected - - DF11
129  Insufficient Manifold Absolute Pressure/Mass Air Flow Change During Dynamic Response Test KOER - DC13 -
136  System Indicates Lean (Bank 2) - H1 -
137  System Indicates Rich (Bank 2) - H1 -
157  Mass Air Flow Sensor Circuit Low Input - - DC10
158  Mass Air Flow Sensor Circuit High Input DC22 - DC22
159  Mass Air Flow Sensor Circuit Voltage Higher Or Lower Than Expected DC1 DC1 -
167  Insufficient Throttle Position Change During Dynamic Response Test KOER - DH20 -
171  Fuel System At Adaptive Limits (Bank 1) - - H1
172  System Indicates Lean (Bank 1) - H1 H1
173  System Indicates Rich (Bank 1) - H1 H1
175  Fuel System At Adaptive Limits (Bank 2) - - H1
176  System Indicates Lean (Bank 2) - - H1
177  System Indicates Rich (Bank 2) - - H1
179  Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (Bank 1) - - HA1
181  Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (Bank 1) - - HA1
184  Mass Air Flow Sensor Voltage Higher Than Expected - - G7
185  Mass Air Flow Sensor Voltage Lower Than Expected - - G7
186  Injector Pulsewidth Higher Than Expected - - G9
187  Injector Pulsewidth Lower Than Expected - - G7
188  Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (Bank 2) - - HA1
189  Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (Bank 2) - - HA1
211  Profile Ignition Pickup Circuit Failure - - NC1
212  Loss Of Ignition Diagnostic Monitor Input To PCM/SPOUT Circuit Grounded - - NC3
213  SPOUT Circuit Open - PC1 -
214  Cylinder Identification Circuit Failure - - DR1
215 Coil 1 Primary Circuit Failure - - (1)
216 Coil 2 Primary Circuit Failure - - (1)
217 Coil 3 Primary Circuit Failure - - (1)
218 Loss Of Ignition Diagnostic Monitor Signal (Left Side) - - (1)
222 Loss Of Ignition Diagnostic Monitor Signal (Right Side) - - (1)
224 Coil 1/2/3/4 Primary Circuit Failure - - (1)
225  Knock Not Sensed During Dynamic Response Test - DG1 -
226  Ignition Diagnostic Monitor Signal Not Received NC2 - -
232 Coil 1/2/3/4 Primary Circuit Failure - - (1)
311  Secondary Air Injection System Inoperative During KOER - KC1 -
312  Secondary Air Injection Misdirected During KOER - KC1 -
313  Secondary Air Injection Not Bypassed During KOER - KC1 -
327  Exhaust Gas Recirculation (DPFE) Circuit Below Minimum Voltage DL1 DL22 DL90
328  Exhaust Gas Recirculation Closed Valve Voltage Lower Than Expected DN25 DN25 DN90
332  Insufficient Exhaust Gas Recirculation Flow Detected - DL30 DL90
334  Exhaust Gas Recirculation Closed Valve Voltage Higher Than Expected DN20 DN20 DN115
335  Exhaust Gas Recirculation Sensor Voltage Higher/Lower Than Expected DL8 - -
336  Exhaust Pressure High/Exhaust Gas Recirculation Circuit Voltage Higher Than Expected - DL50 DL90
337  Exhaust Gas Recirculation Circuit Above Maximum Voltage DL5 DL50 DL90
338  Engine Coolant Temperature Lower Than Expected - - DA100
339  Engine Coolant Temperature Higher Than Expected - - DA101
341  Octane Adjust Service Pin Open KP1 - -
411  Cannot Control RPM During KEOR Low RPM Check - KE15 -
412  Cannot Control RPM During KEOR High RPM Check - KE1 -
452
Aerostar  Insufficient Input From Vehicle Speed Sensor To Powertrain Control Module - - DS1
Explorer  Insufficient Input From Vehicle Speed Sensor To Powertrain Control Module - - DP1
511 Powertrain Control Module Read Only Memory Test Failure (KOEO) Replace PCM
512  Powertrain Control Module Keep Alive Memory Test Failure - - QB1
513  Powertrain Control Module Internal Voltage Failure (KOEO) QD1 QD1 QD1
522
With TR Sensors  Vehicle Not In PARK Or NEUTRAL During KOEO TD1 - -
Without TR Sensors  Vehicle Not In PARK Or NEUTRAL During KOEO TA1 - -
528  Clutch Pedal Position Switch Circuit Failure - - TA1
542  Fuel Pump Circuit Open - Powertrain Control Module To Motor Ground J10 - J90
543  Fuel Pump Circuit Open - Battery To Powertrain Control Module J20 - J93
551 Idle Air Control Circuit Failure KT1 - -
552  Secondary Air Injection Bypass Circuit Failure KC9 - -
553  Secondary Air Injection Diverter Circuit Failure KC9 - -
556  Fuel Pump Relay Primary Circuit Failure J1 - -
558  Exhaust Gas Recirculation Vacuum Regulator Circuit Failure DL11 - -
565
Aerostar  Canister Purge Circuit Failure (Solenoid) KD6 - -
Explorer  Canister Purge Circuit Failure (Valve) KB1 - -
566  3-4 Shift Solenoid Circuit Failure TC1 - -
569  Auxiliary Canister Purge Circuit Failure KD6 - -
617  1-2 Shift Error - - TG90
618  2-3 Shift Error - - TG90
619  3-4 Shift Error - - TG90
621  Shift Solenoid 1 Circuit Failure TC1 - -
622  Shift Solenoid 2 Circuit Failure TC1 - -
623  4X4 Low & Transmission Control Switch TB3 - -
624 Electronic Pressure Control Circuit Failure TC 10 - TG 90
625 Electronic Pressure Control Driver Open In Powertrain Control Module TC 10 - TG 90
626  Coast Clutch Solenoid Circuit Failure TC1 - -
627  Torque Converter Clutch Solenoid Circuit Failure TC1 - -
628  Excessive Converter Clutch Slippage - - TG90
629 Torque Converter Clutch Solenoid Circuit Failure TC 1 - TG 90
631  Transmission Control Indicator Lamp Circuit Failure TB3 - -
632 Transmission Control Switch Circuit Did Not Change States During KOER - TB 2 NA 2
633  4X4 Low Switch Closed During KOEO TB1 - -
634 Transmission Range Voltage Higher/Lower Than Expected TD 1 - TG 90
636  Transmission Fluid Temperature Higher/Lower Than Expected TE1 TE1 -
637  Transmission Fluid Temperature Sensor Circuit Above Maximum Voltage TE10 - TE90
638  Transmission Fluid Temperature Sensor Circuit Below Minimum Voltage TE20 - TE90
639  Insufficient Input From Vehicle Speed Sensor To Powertrain Control Module - TF1 TF90
641  Shift Solenoid 3 Circuit Failure TC1 - -
643  Coast Clutch Solenoid Circuit Failure TC20 - TC30
652  Torque Converter Clutch Solenoid Circuit Failure TC1 - -
654  Transmission Range Sensor Indicating Not In PARK During Self-Test TD1 - -
655  Transmission Range Sensor Indicating Not In NEUTRAL During Self-Test TD1 - -
656  Torque Converter Clutch Slippage - - TG 90
657  Transmission Fluid Temperature OverTemperature - - TE100
667 Transmission Range Circuit Voltage Below Minimum Voltage TD 1 TD 1 TG 90
668 Transmission Range Circuit Voltage Above Maximum Voltage TD 1 TD 1 TG 90
676 Transmission Fault (2) (2) (2)
677 Transmission Fault (2) (2) (2)
691
Aerostar  4X4 Low Switch Open Or Short Circuit - - TB1
Explorer  4X4 Low Switch Open Or Short Circuit - - TB10
692 Transmission State Does Not Match Calculated Ratio (2) (2) (2)
998 Hard Fault Present - FMEM Mode FMEM - -
(1) Refer to I - SYSTEM/ COMPONENT TESTS - EEC-IV (4.0L) article.
(2) Check transmission for mechanical problem.
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