| EEC IV Code |
Test Performed |
Code Definition |
| 11 |
|
System Pass |
| 12 |
R |
RPM at idle out of range
/ high |
| 13 |
O,R,C |
RPM at idle out of range
/ low |
| 14 |
O,C |
Profile Ignition Pickup
(PIP) failure |
| 15 |
O |
PCM Read Only Memory
(ROM) test failed |
| 15 |
C |
Power interruption to
computer memory or PCM Keep Alive Memory (KAM) test
failed |
| 18 |
R,C |
SPOUT circuit open or IDM
circuit failure (SPOUT circuit grounded |
| 18 |
C |
Loss of TACH
input to ECA/ SPOUT circuit grounded |
| 19 |
C |
Distributorless Ignition
Cylinder Identification circuit failure |
| 21 |
O,R,C |
Cooling temperature
sensor out of specified range or ECT out of range |
| 22 |
O,R,C |
Manifold Absolute
Pressure (MAP) or BARO sensor out of range |
| 23 |
O,R,C |
Throttle Position (TP)
sensor signal out of range |
| 24 |
O,R |
Intake Air Charge
Temperature sensor or vane air temperature sensor or EDIS
fault |
| 25 |
R |
Knock Sensor
not sensed during Dynamic Response Test |
| 26 |
O,R |
Mass air flow sensor out
of range |
| 29 |
C |
Insufficient input from
Vehicle Speed Sensor |
| 31 |
O,R,C |
EGR valve position sensor
below minimum voltage |
| 32 |
O,R,C |
EGR valve not seated.
Closed voltage low. |
| 33 |
R,C |
EGR valve not opening.
Insufficient flow. |
| 34 |
O,R,C |
EGR valve pressure
transducer voltage above closed limit |
| 35 |
O,R,C |
EGR signal voltage too
high |
| 38 |
C |
Idle control circuit open |
| 39 |
C |
Automatic overdrive
circuit failure (transmission failure) |
| 41 |
R,C |
Oxygen Sensor indicating
system lean, right side |
| 42 |
R,C |
Oxygen Sensor indicating
system rich, right side |
| 44 |
C |
Exhaust Gas Temperature
Switch failed; catalyst too high temperature |
| 45 |
C |
Coil Pack 1 (A) circuit
failed |
| 46 |
C |
Coil Pack 2 (B) circuit
failed |
| 47 |
C |
Spark Location Error |
| 48 |
C |
Coil Pack 3 (C) ciruit
failed |
| 49 |
C |
SPOUT signal default to
10 degrees BTDC |
| 51 |
O,C |
Coolant temperature
sensor circuit open |
| 52 |
O,R |
Power Steering Pressure
Switch (PSPS) circuit open |
| 53 |
O,C |
Throttle Position (TP)
sensor above maximum voltage |
| 54 |
O,C |
Air Charge Temperature
sensor circuit open |
| 61 |
O,C |
Engine coolant
temperature sensor circuit grounded |
| 63 |
O,C |
Throttle Position (TP)
circuit fault, below minimum voltage |
| 64 |
O,C |
Air Charge Temperature
circuit grounded |
| 66 |
C |
Mass air flow sensor
fault, below minimum voltage |
| 67 |
O,R,C |
Neutral Drive Switch
fault, switch circuit open / Air conditioner on during
self-test |
| 67 |
C |
Clutch switch fault |
| 72 |
R |
Insufficient Mass Air
Flow change during Dynamic Response Test |
| 73 |
R |
Insufficient Throttle
Position (TP) sensor output during Dynamic Response Test |
| 74 |
R |
Brake On/Off (BOO) switch
fault |
| 75 |
R |
Brake On/Off (BOO) switch
fault |
| 77 |
R |
Wide Open Throttle not
sensed during Dynamic Response Test |
| 79 |
O |
Air Conditioner
"ON" during self-test / defrost on |
| 82 |
O |
Supercharger By-pass
Solenoid circuit failure |
| 83 |
O |
EGR control circuit fault
(3L CFI, 2.3L EFI, ex. turbo) |
| 83 |
O |
High Speed Fan circuit
failure |
| 84 |
O,R |
EGR Vacuum Regulator
circuit failure |
| 85 |
O,R |
Canister Purge circuit
failure |
| 87 |
O,R,C |
Fuel pump primary circuit
fault |
| 88 |
O |
Electro Drive FAn circuit
failure |
| 91 |
R,C |
Oxygen sensor indicating
system lean, left side |
| 92 |
R,C |
Oxygen sensor indicating
system rich, left side |
| 95 |
O,C |
Fuel pump circuit open,
ECA to motor |
| 96 |
O,C |
Fuel pump circuit open,
Battery to ECA |
| 98 |
R |
Computer detected hard
fault (EEC in FMEM or Failure Management Effects Mode) |
