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Thread: Hvordan lese av feilkoder OBD I

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    Exclamation Hvordan lese av feilkoder OBD I

    DETTE ER SAKSET FRA DIVERSE ANDRE FORA Håper det faller i smak
    For most 1994 and back (OBD 1, 12 pin ALDL) short terminals A & B.

    In 1995 GM changed to OBD 1.5. Some late 1994 models are also OBD 1.5. For these (OBD 1.5, 16 pin ALDL) short terminals 5 & 6.

    Turn key on, but do not start engine. Find and Short terminals with a paper clip. The check engine light will begin to flash. The ECM (computer) will display a "code 12" by flashing the "service engine soon" light, indicating that the system is operating. A code 12 is simply one flash, followed by a brief pause, then two flashes in quick succession. This code will be flashed 3 times. If no other codes are stored, code 12 will flash until the diagnostic terminal ground is removed. After flashing code 12 3 times, the ECM will display any stored trouble codes. Each code will be flashed 3 times, then code 12 will be flashed again, indicating that the display of any stored trouble codes has been completed.

    This procedure only works on OBDI vehicles up to '95. Do NOT try this procedure on a 96 or newer vehicle!!

    You want to jumper pins A and B. That should be the two upper right pins as you look at the plug.

    1. With power off, jumper pin A to pin B

    2. Turn the ignition to ON but DO NOT start the vehicle.

    3. The Service Engine Soon (SES) light should flash code 12 (1 flash, pause, 2 quick flashes)

    4. After a longer pause, code 12 should repeat two more times.

    5. If there are any codes stored in the ECM they will follow Code 12.

    6. If no other codes have been stored then Code 12 will continue to repeat until the jumper is disconnected.


    Remember all OBDI codes are two-digit. I will work on another post to this thread that has a list of codes.
    CODE SERVICE CODE DEFINITION

    11 (Saturn vehicles ONLY): Indicates transmission service
    codes will be displayed next on the "Shift to D2" light
    (1991-92 models) or "Temperature" indicator light (1993
    and later models)

    12 Diagnostic mode; no distributor signal to Electronic
    Control Module; System PASS

    13 Oxygen sensor signal fault - signal too low / open left
    oxygen sensor circuit (Dual sensor models)

    14 Coolant sensor or circuit fault - signal voltage low or
    shorted

    15 Coolant temperature sensor or circuit fault - signal
    voltage high

    16 Battery or alternator problem - voltage too high or low
    Direct ignition system (DIS) fault line open or shorted to
    ground
    Ignition system fault - loss of 2X or Low Resolution
    Pulse signal
    Transmission speed error

    17 RPM signal problem
    Camshaft sensor - circuit problems
    Electronic Control Module (ECM) computer circuit
    problem - Pull-up resistor (Saturn)

    18 Camshaft or Crankshaft sensor - circuit problems
    Fuel Injector circuit is not working properly - possible
    blown fuel injector fuse

    19 Ignition system fault - Intermittent 7X signal or loss of
    58X signal or 6X signal (Saturn)

    21 Throttle position sensor (TPS) - signal voltage is high

    22 Throttle position sensor (TPS) - signal voltage is low
    Fuel cutoff relay circuit - open or shorted to ground

    23 Manifold air temperature (MAT) sensor - signal voltage
    is low or high
    Throttle position sensor (TPS) error
    Mixture Control (M/C) solenoid - open or short circuit
    problems
    Intake Air Temperature Sensor (IAT) low
    Retrieving ECM Codes

    24 Vehicle speed sensor (VSS) - open or short circuit
    problems or park/neutral switch circuit problem

    25 Manifold air temperature (MAT) sensor - signal voltage
    is low or high
    Vacuum switching valve circuit open or shorted to
    ground
    ATS sensor - signal voltage is high or low

    26 Quad-Driver module or Quad-driver No. 1 error

    27 2nd gear switch problem
    Quad-Driver module or Quad-driver No. 2 error

    28 3rd gear switch
    Quad-Driver module or Quad-driver No. 3 error
    (Corvette)
    (Transmission) Fluid pressure switch assembly - open or
    short circuit problems

    29 4th gear switch
    Quad-Driver module or Quad-driver No. 3 error
    Secondary air injection system - circuit problems

    31 Manifold absolute pressure (MAP) sensor - signal
    voltage is low
    Fuel injector
    Park/Neutral switch - circuit problems
    CAM sensor - circuit problems
    Engine speed control governor malfunction (Van)
    Turbocharger wastegate overboost
    Wastegate electrical signal - open or shorted to ground
    Purge solenoid voltage high (carburetor engines)

    32 Barometric pressure (BARO) sensor circuit failure
    Exhaust gas recirculation (EGR) valve diagnostic switch -
    closed during engine start-up or open when EGR flow
    requested by ECM
    Electronic vacuum regulator valve (EVRV) error (EVRV
    controls EGR vacuum)

    33 Mass air flow (MAF) sensor - signal voltage or frequency
    is high during engine idle
    Manifold absolute pressure (MAP) sensor - signal
    voltage is high during engine idle (Note: Engine misfire
    or unstable idle may cause this code)

    34 Mass air flow (MAF) sensor - signal voltage or frequency
    is low during engine cruise
    Manifold absolute pressure (MAP) sensor - signal
    voltage is low during ignition on
    Pressure sensor circuit - signal voltage too high or low
    (carburetor engines)

    35 Idle air control (IAC) system problem - can not set
    desired RPM or idle speed actuator (ISA) carbureted
    system problems

    36 Mass air flow (MAF) sensor - burn-off circuit problem
    Transmission shift problem (electronically controlled
    transmissions only)
    Direct ignition system (DIS) fault - loss of 24X signal or
    extra or missing pulses in electronic spark timing (EST)
    signal
    Ignition system fault - loss of High Resolution Pulse
    signal

    37 Brake switch stuck"on"

    38 Brake switch circuit fault
    Knock sensor (KS) - open circuit problem

    39 Torque converter clutch (TCC circuit fault)
    Clutch switch circuit problems
    Knock sensor (KS) - short circuit problem

    41 Cam sensor (CAM) failure
    Cylinder select error
    Tach input error - no reference pulses during engine run
    Electronic spark timing (EST) circuit - open or shorted
    to ground during engine run
    Direct ignition system (DIS) fault - bypass circuit open
    or shorted to ground during engine run
    Ignition system fault - loss of 1X Reference Pulse signal
    Retrieving ECM Codes

    42 Electronic spark timing (EST) circuit - open or shorted
    Direct ignition system (DIS) fault - bypass circuit open
    or shorted to ground during engine run
    Fuel cutoff relay circuit - open or shorted to ground

    43 Electronic spark timing (EST) circuit - low voltage
    detected
    Electronic spark control (ESC) - circuit problems

    44 Lean exhaust indicated (Left side on dual oxygen models)

    45 Rich exhaust indicated (Left side on dual oxygen
    models)

    46 Vehicle anti-theft system (VATS) failure
    Power steering pressure switch failure

    47 Circuit or component problem in ECM/PCM (communication
    error)
    Knock sensor module error (inside computer)

    48 Misfire symptom
    Mass air flow (MAF) sensor - circuit error

    49 RPM is high at idle (possible vacuum leak)

    50 System voltage is low

    51 Computer problem; faulty, wrong or incorrectly installed
    PROM circuit; or ECM/PCM failure

    52 Calibration Package Chip or ECM fault or oil temperature
    sensor fault/low engine temperature
    (Corvette); faulty or missing PROM/Calibration Package
    Chip; ECM problem
    System voltage high for a long period of time

    53 System voltage too high (over 17.7 volts to ECM) or
    EGR system fault or alternator voltage not normal or
    Vehicle Anti-Theft System fault

    54 Fuel pump circuit fault or Mixture Control (M/C)
    solenoid fault or Electronic Control Module (ECM)
    fault/EGR solenoid #2 failure (3.8L VIN1)
    Fuel pump relay

    55 Electronic Control Module (ECM) fault or oxygen sensor
    circuit fault or EGR solenoid #3 failure (3.8L VIN1) or
    fuel lean monitor (Corvette)

    56 Vacuum sensor circuit fault or quad driver "B" fault
    (3.8L VIN1)
    Corrosivity/add coolant

    57 Boost control problem (3.8L VIN1)

    58 Vehicle Anti-Theft System fault (3.8L)
    Transmission Temperature Sensor (TTS) - short circuit
    Transmission fluid temp high

    59 Transmission Temp Sensor (TTS) - open
    Transmission fluid temp low

    60 Transmission not in drive

    61 Oxygen sensor signal fault or port throttle system fault
    or on-board cruise control fault (vent solenoid circuit)
    Air Conditioner (A/C) system performance problems

    62 Engine oil temperature sensor fault or gear switch
    signal circuit fault or on-board cruise control fault
    (vacuum solenoid circuit)

    63 EGR flow problem or on-board cruise control problem
    Servo Position Sensor (SPS) circuit fault or Manifold
    Absolute Pressure (MAP) sensor fault or oxygen sensor
    fault

    64 EGR flow problem or on-board cruise control problem or
    Manifold Absolute Pressure (MAP) sensor fault or
    oxygen sensor fault

    65 EGR flow problem or on-board cruise control problem
    Servo Position Sensor (SPS) circuit fault or Manifold
    Absolute Pressure (MAP) sensor fault or oxygen sensor
    fault or fuel injector current low

    66 Electronic Control Module (ECM) computer circuit fault
    or air conditioning pressure sensor circuit fault or low
    air conditioning refrigerant charge
    (Transmission) 3-2 shift control solenoid - circuit
    problems

    67 Cruise control - switch circuit problems
    Air Conditioner (A/C) pressure sensor - circuit problems
    Torque Converter Clutch (TCC) solenoid - circuit
    problems
    Cruise control switches - circuit problems
    Retrieving ECM Codes

    68 On-board cruise control switch circuit problems Servo
    Position Sensor (SPS) circuit fault or shorted A/C clutch
    relay circuit (Corvette) or overdrive ratio error

    69 Air conditioning head pressure switch circuit fault or air
    conditioning pressure switch problem
    Torque converter clutch stuck "on"

  2. #2
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    70 Air conditioning refrigerant pressure sensor circuit fault
    (high pressure) or quad driver module error

    71 Air conditioning evaporator temperature sensor circuit
    fault (low temp.)

    72 Gear select switch circuit fault - Corvette only
    Vehicle Speed Sensor (VSS) - loss of signal

    73 Air conditioning evaporator temperature sensor circuit
    fault (high temp.)
    (Transmission) Pressure control solenoid - circuit
    problems

    74 Traction control circuit voltage low

    75 Digital EGR fault - #1 solenoid or system voltage low
    (charging system problem)
    Transmission voltage low

    76 Digital EGR fault - #2 solenoid

    77 Digital EGR fault - #3 solenoid
    Primary cooling fan relay driver circuit - circuit
    problems

    78 Secondary cooling fan relay driver circuit - circuit
    problems

    79 Vehicle Speed Sensor (VSS) - signal voltage too high
    Transmission Temperature Sensor (TTS) - high
    temperature

    80 Vehicle Speed Sensor (VSS) - signal voltage too low;
    transmission component fault

    81 QDM Solenoid "B" monitored voltage differs from
    commanded
    Anti-Lock Brake System (ABS) message fault (Saturn)
    Brake switch circuit problems

    82 Internal PCM communication fault (Saturn) or QDM
    Solenoid "A" monitored voltage differs from commanded
    Ignition system fault - 3X signal problem

    83 Torque Converter Clutch (TCC) solenoid - circuit
    problems
    Reverse Inhibit - open or short circuit in reverse inhibit
    solenoid

    84 3-2 Control solenoid - open or short circuit problems
    Skip shift solenoid - open or short circuit problems

    85 Programmable Read Only Memory error or undefined
    gear ratio (input or output sensor failure)
    Torque converter clutch (TCC) - TCC is mechanically
    stuck on

    86 Analogue/Digital Electronic Control Module (ECM)
    error or shift Solenoid "B" stuck on

    87 Electrically Erasable Programmable Read Only Memory
    (EEPROM) error or shift Solenoid "B" stuck off or high
    gear ratio error

    88 Electronic Control Module (ECM) computer circuit fault

    89 Power Management fault

    90 TCC error

    91 Skip shift light - open or short circuit problems in skip
    shift light circuit

    93 Pressure control solenoid - transmission line pressure
    not at desired level

    95 Change oil light - wrong voltage is present in light
    circuit for more than 26 seconds

    96 Transmission voltage low - low system voltage possibly
    caused by generator voltage supply circuit or power
    train control module
    Low oil light - wrong voltage is present in light circuit
    for more than 26 seconds

    97 Vehicle speed sensor (VSS) - output circuit problems

    99 Tachometer output circuit problems

  3. #3

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    Hvor finner jeg denne kontakten på en -89 K5 diesel ?

  4. #4
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    bak midtspeilet
    Sheriffen

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