Code |
Test |
Meaning |
11 |
O,C,R |
System pass |
12 |
R |
RPM not within self-test upper limit |
13 |
R |
RPM not within self-test lower limit |
14 |
C |
Profile Ignition Pickup circuit failure |
15 |
O |
Read Only Memory test failed |
15 |
C |
Keep Alive Memory test failed |
16 |
R |
RPM too low to perform Oxygen sensor/fuel test (5.0L only) |
18 |
C |
Loss of TACH input to ECA; SPOUT circuit grounded |
18 |
R |
SPOUT circuit open |
19 |
C |
Distributorless Ignition Cylinder identification circuit failure (3.8L SC only) |
19 |
O |
Failure in EEC reference voltage (except 3.8L SC) |
21 |
O,R |
Coolant Temperature Sensor (CTS) out of range |
22 |
O,C,R |
Manifold Absolute/Baro Pressure Sensor out of range |
23 |
O,R |
Throttle Position Sensor (TPS) out of range |
24 |
O,R |
Air Charge Temperature (ACT) sensor out of range |
25 |
R |
Knock sensor not sensed during Dynamic Response Test |
26 |
O,R |
Mass Air Flow (MAF) sensor out of range |
29 |
C |
No input from Vehicle Speed Sensor (VSS) |
31 |
O,C,R |
EGR Valve Position (EVP) sensor out of range (low) |
32 |
C,R |
EGR valve not seated; closed voltage low |
33 |
C,R |
EGR valve not opening; insufficient flow detected |
34 |
O,C,R |
EGR Valve Pressure Transducer/Position Sensor sonic voltage above closed limit |
35 |
O,C,R |
EGR Valve Pressure Transducer/Position Sensor voltage out of range (high) |
41 |
R,C |
Oxygen sensor circuit indicates system lean, right side |
42 |
R |
Oxygen sensor circuit indicates system rich, right side |
44 |
R |
Thermactor Air system inoperative, right side (5.0L only) |
44 |
C |
Exhaust Gas Temperature Switch failed or catalyst over temperature (3.8L SC only) |
45 |
C |
Coil Pack 1 (A) circuit failed (3.8L SC only) |
45 |
R |
Thermactor Air upstream during self-test (5.0L only) |
46 |
C |
Coil Pack 2 (B) circuit failed (3.8L SC only) |
46 |
R |
Thermactor Air not by-passed during self-test (5.0L only) |
47 |
C |
Spark location error (3.8L SC only) |
48 |
C |
Coil Pack 3 (C) circuit failed (3.8L SC only) |
49 |
C |
Default spark error (3.8L SC only) |
51 |
O,C |
Coolant Temperature Sensor (CTS) circuit open |
52 |
O,R |
Power Steering Pressure Switch circuit open |
53 |
O,C |
Throttle Position Sensor (TPS) out of range (high) |
54 |
O,C |
Air Charge Temperature (ACT) sensor circuit open |
56 |
O,C |
Mass Air Flow (MAF) sensor out of range (high) |
61 |
O,C |
Coolant Temperature Sensor (CTS) circuit grounded |
63 |
O,C |
Throttle Position Sensor (TPS) circuit out of range (low) |
64 |
O,C |
Air Charge Temperature (ACT) sensor circuit grounded |
66 |
C |
Mass Air Flow (MAF) sensor circuit out of range (low) |
67 |
C |
Clutch Switch circuit failed (3.8L SC only) |
67 |
O |
Neutral Drive Switch circuit open |
72 |
R |
Insufficient Mass Air Flow change during Dynamic Response Test |
73 |
R |
Insufficient Throttle Position output during Dynamic Response Test |
74 |
R |
Brake on/off switch failure |
75 |
R |
Brake on/off circuit failure |
77 |
R |
Wide Open Throttle (WOT) not sensed during self-test |
79 |
O |
A/C on during self-test |
81 |
O |
Air Management 2 circuit failure (5.0L only) |
82 |
O |
Air Management 1 circuit failure (5.0L only) |
82 |
O |
Supercharger By-pass Solenoid circuit failure (3.8L SC only) |
83 |
O |
High Speed Electro Fan drive circuit failure (3.8L SC only) |
84 |
O |
EGR Vacuum Regulator (EVR) circuit failure |
85 |
O |
Canister Purge circuit failure |
87 |
O,C |
Primary Fuel Pump circuit failure |
88 |
O |
Electro Drive Fan circuit failure (3.8L SC only) |
91 |
R,C |
Oxygen sensor indicates system lean, left side |
92 |
R |
Oxygen sensor indicates system rich, left side |
94 |
R |
Thermactor Air system inoperative, left side (5.0L only) |
95 |
O,C |
Fuel Pump circuit open, ECA to motor |
96 |
O,C |
Fuel Pump circuit open, battery to ECA |
98 |
R |
Hard Fault present |
111 |
O,C,R |
System Pass |
112 |
O,C |
Air charge Temperature (ACT) sensor circuit below minimum voltage |
113 |
O,C |
Air Charge Temperature (ACT) sensor circuit above maximum voltage |
114 |
O,R |
Air Charge Temperature (ACT) sensor out of range |
116 |
O,R |
Coolant Temperature Sensor (CTS) out of range |
117 |
O,C |
Coolant Temperature Sensor (CTS) circuit below minimum voltage |
118 |
O,C |
Coolant Temperature Sensor (CTS) circuit above maximum voltage |
121 |
O,C,R |
Throttle Position Sensor (TPS) out of range |
122 |
O,C |
Throttle Position Sensor (TPS) below minimum voltage |
123 |
O,C |
Throttle Position Sensor (TPS) above maximum voltage |
124 |
C |
Throttle Position Sensor (TPS) voltage higher than expected |
125 |
C |
Throttle Position Sensor (TPS) voltage lower than expected |
126 |
O,C,R |
Manifold Absolute/Baro Pressure sensor out of range |
129 |
R |
Insufficient Manifold Absolute Pressure/Mass Air Flow change |
136 |
R |
Indicates lean condition, left side |
137 |
R |
Indicates rich condition, left side |
139 |
C |
No Oxygen sensor switching detected, left side |
144 |
C |
No Oxygen sensor switching detected, right side |
157 |
C |
Mass Air Flow (MAF) sensor below minimum voltage |
158 |
O,C |
Mass Air Flow (MAF) sensor above maximum voltage |
159 |
O,R |
Mass Air Flow (MAF) sensor out of range |
167 |
R |
Insufficient Throttle Position Sensor (TPS) change |
171 |
C |
Oxygen sensor unable to switch, right side |
172 |
R,C |
Oxygen sensor indicates lean condition, right side |
173 |
R,C |
Oxygen sensor indicates rich condition, right side |
174 |
C |
Oxygen sensor switching slow, right side |
175 |
C |
Oxygen sensor unable to switch, left side |
176 |
C |
Oxygen sensor indicates lean condition, left side |
177 |
C |
Oxygen sensor indicates rich condition, left side |
178 |
C |
Oxygen sensor switching slow, left side |
179 |
C |
Adaptive fuel lean limit reached at part throttle, system rich, right side |
181 |
C |
Adaptive fuel rich limit reached at part throttle, system lean, right side |
182 |
C |
Adaptive fuel lean limit reached at idle, system rich, right side |
183 |
C |
Adaptive fuel rich limit reached at idle, system lean, right side |
184 |
C |
Mass Air Flow higher than expected |
185 |
C |
Mass Air Flow lower than expected |
186 |
C |
Injector pulse-width higher than expected |
187 |
C |
Injector pulse-width lower than expected |
188 |
C |
Adaptive fuel lean limit reached at part throttle, system rich, left side |
189 |
C |
Adaptive fuel rich limit reached at part throttle, system lean, left side |
191 |
C |
Adaptive fuel lean limit reached at idle, system rich, left side |
192 |
C |
Adaptive fuel rich limit reached at idle, system lean, left side |
211 |
C |
Profile Ignition Pickup (PIP) circuit fault |
212 |
C |
Loss of TACH input to ECA; SPOUT circuit grounded |
213 |
R |
SPOUT circuit open |
214 |
C |
Distributorless Ignition System (DIS) cylinder identification circuit failure |
215 |
C |
Coil 1 primary circuit failure (DIS) |
216 |
C |
Coil 2 primary circuit failure (DIS) |
217 |
C |
Coil 3 primary circuit failure (DIS) |
219 |
C |
SPOUT circuit open; timing defaulted to 10 degrees |
225 |
R |
Knock not sensed during Dynamic Response Test |
311 |
R |
Thermactor Air system inoperative, right side |
313 |
R |
Thermactor Air not by-passed |
314 |
R |
Thermactor Air system inoperative, left side |
326 |
C,R |
EGR circuit voltage lower than expected |
327 |
O,C,R |
EGR Valve Pressure Transducer/Position sensor circuit below minimum voltage |
328 |
O,C,R |
EGR Valve Position sensor voltage below closed limit |
332 |
C,R |
EGR Valve opening not detected |
334 |
O,C,R |
EGR Valve Position sensor voltage above closed limit |
335 |
O |
EGR sensor voltage out of range |
336 |
C,R |
EGR circuit voltage higher than expected |
337 |
O,C,R |
EGR Valve Pressure Transducer/Position sensor circuit above maximum voltage |
341 |
O |
Octane Adjust Service pin in use |
411 |
R |
Unable to control RPM during low RPM self-test |
412 |
R |
Unable to control RPM during high RPM self-test |
452 |
C |
No input from Vehicle Speed Sensor (VSS) |
511 |
O |
Read Only Memory test failed |
512 |
C |
Keep Alive Memory test failed |
513 |
O |
Internal voltage failure in ECA |
522 |
O |
Neutral Drive Switch circuit open |
525 |
O |
Indicates vehicle in gear, A/C on |
528 |
C |
Clutch Switch circuit failure |
536 |
O,R,C |
Brake on/off switch circuit failure |
538 |
R |
Insufficient change in RPM |
539 |
O |
A/C on during self-test |
542 |
O,C |
Fuel pump circuit open; ECA to motor |
543 |
O,C |
Fuel pump circuit open; battery to ECA |
552 |
O |
Air Management 1 circuit failure |
556 |
O,C |
Primary fuel pump circuit failure |
558 |
O |
EGR Vacuum Regulator (EVR) circuit failure |
563 |
O |
High Speed Electro Drive Fan circuit failure |
564 |
O |
Electro Drive Fan relay circuit failure |
565 |
O |
Canister Purge circuit failure |
998 |
R |
Hard fault present |