| CÑdigo |
DescripciÑn
|
Causa |
| 1 |
Primary O2 Sensor |
Open or Short in O2
sensor circuit, bad Primary
O2 sensor |
| 3 |
Manifold Absolute Pressure
Sensor |
Open or short in MAP
sensor circuit, bad MAPS
|
| 4 |
Crankshaft Position
Sensor |
Failed sensor or timing
belt slipped, bad CPS
|
| 5 |
Manifold Absolute Pressure
Sensor |
Reading too low or
too high, bad MAP |
| 6 |
Engine Coolant Temp
Circuit |
Reading too low, high,
short or open, bad ECT
|
| 7 |
Throttle Position Circuit
|
Reading too high, low,
short or open, bad TPS
|
| 8 |
Crankshaft Position
Sensor/
Top Dead Center Sensor/
Cylinder Position Sensor/
|
CKP/TDC/CYP sensor
circuit disconnected,
open or short. Bad TDC
senor. |
| 9 |
Cylinder Position Sensor
|
Open or short in CYP
circuit, bad CYP sensor
|
| 10 |
Intake Air Temperature
Sensor |
Short or open in AIT
circuit, bad AITS |
| 13 |
Barometric Pressure
Sensor Circuit |
Bad ECM (Barometric
sensor) |
| 14 |
Idle Control System
Malfunction |
Bad IAC valve, bad
fast idle thermo valve,
Throttle body |
| 17 |
Vehicle Speed Sensor
Circuit |
Short or open in VSS
circuit, bad VSS |
| 20 |
Electrical Load Detector
Circuit |
Short or open in circuit,
bad ELD |
| 22 |
VTEC System Malfunction
|
Short or open in VTEC
circuit, bad VTEC solenoid
valve, Bad VTEC pressure
switch |
| 23 |
Knock Sensor Circuit
|
Short or open in Knock
Sensor circuit, bad Knock
Sensor |
| 30 |
A/T FI Signal A high/low
input |
Bad AFSA line, TCM
|
| 31 |
A/T FI Signal B high/low
input |
Bad AFSB line, TCM
|
| 41 |
Primary Heated O2 Sensor
Heater |
Open or short in Primary
O2 sensor heater circuit
|
| 45 |
System too lean/rich
|
Fuel supply system,
Primary O2 sensor, MAP
sensor, contaminated fuel,
valve clearance, exhaust
leakage |
| 54 |
Crankshaft Speed Fluctuation
Sensor |
Open or short in CKF
circuit, bad CKF sensor
|
| 61 |
Primary Heated O2 Sensor
|
Slow response, bad
O2 sensor, exhaust leak
|
| 63 |
Secondary Heated O2
Sensor |
Slow response, bad
O2 sensor, exhaust leak
|
| 65 |
Secondary Heated O2
Sensor Circuit |
Open or short in secondary
O2 sensor circuit |
| 67 |
Catalyst System Efficiency
|
System below threshold,
bad catalytic converter
|
| 70 |
Automatic Transaxle
|
A/T transmission, A/T
FI data line, TCM, ECM
|
| 71 |
Random Misfire (Cyl
1) |
Ignition
system, fuel supply system,
MAP sensor, IAC valve,
contaminated fuel, lack
of fuel, fuel injector,
fuel injector circuit,
low compression, valve
clearance |
| 72 |
Random Misfire (Cyl
2) |
| 73 |
Random Misfire (Cyl
3) |
| 74 |
Random Misfire (Cyl
4) |
| 86 |
Engine Coolant Temp
Circuit |
Bad ECT sensor, bad
cooling system |
| 90 |
Evap Emission Control
System Leak |
Fuel cap loose, poor
vacuum connection, fuel
tank, fuel tank pressure
sensor, EVAP bypass solenoid
valve, EVAP tow-way valve,
EVAP control canister
vent shut valve, EVAP
canister, EVAP purge control
solenoid valve |
| 91 |
Fuel Tank Pressure
Sensor Circuit |
Open or short in FTP
circuit, Bad fuel tank
pressure sensor |