1992 Hyundai Excel GL, AutomaticFACTORY OEM SERVICE PROCEDURE

Trouble Code Definition Tables

DIAGNOSTIC CODES - ELANTRA

Trouble Code Fault Item Probable Cause (1) See:
9 (2) (2) -
11 O2 Sensor Fuel Pressure, Injectors, Vacuum Leak, O2 Sensor Figure
12 Airflow Sensor Airflow Sensor Figure
13 Intake Air Temperature Sensor Intake Air Temperature Sensor Figure
14 Throttle Position Sensor Throttle Position Sensor, IdleSwitch Figure
21 Coolant Temperature Sensor Coolant Temperature Sensor Figure
22 Crank Angle Sensor Crank Angle Sensor Figure
23 TDC Sensor (No. 1 Cylinder) Distributor -
24 Vehicle Speed Sensor Reed Switch Vehicle Speed Sensor Reed Switch -
25 Barometric Pressure Sensor Barometric Pressure Sensor Figure
41 Fuel Injector Injector Coil Resistance Figure
42 Fuel Pump Control Relay -
43 EGR Temperature Sensor (Calif. Only) EGR Temp. Sensor, Valve, Control Solenoid, Control Vacuum Figure
44 Ignition Coil Ignition Coil, Power Transistor Figure
(1) Faulty components, harnesses and connectors are always a probable cause for setting a fault code.
(2) Nine short pulses on voltmeter or NORMAL message on MUT indicates no trouble codes in memory. Continuous voltage reading on voltmeter indicates faulty ECU.
DIAGNOSTIC CODES - EXCEL & SCOUPE

Trouble Code Fault Item Probable Cause (1) See:
9 (2) (2) -
11 O2 Sensor Fuel Pressure, Injectors, Vacuum Leak, O2 Sensor Figure
12 Airflow Sensor Airflow Sensor Figure
13 Intake Air Temperature Sensor Intake Air Temperature Sensor Figure
14 Throttle Position Sensor Throttle Position Sensor, IdleSwitch Figure
15 Motor Position Sensor Motor Position Sensor -
21 Coolant Temperature Sensor Coolant Temperature Sensor Figure
22 Crank Angle Sensor Crank Angle Sensor Figure
23 TDC Sensor (No. 1 Cylinder) Distributor -
24 Vehicle Speed Sensor Reed Switch Vehicle Speed Sensor Reed Switch -
25 Barometric Pressure Sensor Barometric Pressure Sensor Figure
41 Fuel Injector Injector Coil Resistance Figure
42 Fuel Pump Control Relay -
43 EGR Temperature Sensor (Calif. Only) EGR Temp. Sensor, Valve, Control Solenoid, Control Vacuum Figure
(1) Faulty components, harnesses and connectors are always a probable cause for setting a fault code.
(2) Nine short pulses on voltmeter or NORMAL message on MUT indicates no trouble codes in memory. Continuous voltage reading on voltmeter indicates faulty ECU.
DIAGNOSTIC CODE - SONATA 2.0L

Trouble Code Fault Item Probable Cause (1) See:
9 (2) (2) -
11 O2 Sensor Fuel Pressure, Injectors, Vacuum Leak, O2 Sensor Figure
12 Airflow Sensor Airflow Sensor Figure
13 Intake Air Temperature Sensor Intake Air Temperature Sensor Figure
14 Throttle Position Sensor Throttle Position Sensor, IdleSwitch Figure
21 Coolant Temperature Sensor Coolant Temperature Sensor Figure
22 Crank Angle Sensor Crank Angle Sensor Figure
23 TDC Sensor (No. 1 Cylinder) Distributor -
24 Vehicle Speed Sensor Reed Switch Vehicle Speed Sensor Reed Switch -
25 Barometric Pressure Sensor Barometric Pressure Sensor Figure
41 Fuel Injector Injector Coil Resistance Figure
42 Fuel Pump Control Relay -
43 EGR Temperature Sensor (Calif. Only) EGR Temp. Sensor, Valve, Control Solenoid, Control Vacuum Figure
44 Ignition Coil Ignition Coil, Power Transistor Figure
(1) Faulty components, harnesses and connectors are always a probable cause for setting a fault code.
(2) Nine short pulses on voltmeter or NORMAL message on MUT indicates no trouble codes in memory. Continuous voltage reading on voltmeter indicates faulty ECU.
DIAGNOSTIC CODE - SONATA 3.0L

Trouble Code Fault Item Probable Cause (1) See:
9 (2) (2) -
11 O2 Sensor Fuel Pressure, Injectors, Vacuum Leak, O2 Sensor Figure
12 Airflow Sensor Airflow Sensor Figure
13 Intake Air Temperature Sensor Intake Air Temperature Sensor Figure
14 Throttle Position Sensor Throttle Position Sensor, IdleSwitch Figure
21 Coolant Temperature Sensor Coolant Temperature Sensor Figure
22 Crank Angle Sensor Crank Angle Sensor Figure
23 TDC Sensor (No. 1 Cylinder) Distributor -
24 Vehicle Speed Sensor Reed Switch Vehicle Speed Sensor Reed Switch -
25 Barometric Pressure Sensor Barometric Pressure Sensor Figure
41 Fuel Injector Injector Coil Resistance Figure
42 Fuel Pump Control Relay -
43 EGR Temperature Sensor (Calif. Only) EGR Temp. Sensor, Valve, Control Solenoid, Control Vacuum Figure
(1) Faulty components, harnesses and connectors are always a probable cause for setting a fault code.
(2) Nine short pulses on voltmeter or NORMAL message on MUT indicates no trouble codes in memory. Continuous voltage reading on voltmeter indicates faulty ECU.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.