Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1996 Hyundai Elantra GLFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Diagnostic Tests
- Diagnostic Trouble Code (DTC) Definition
- No Malfunction Indicator Light (Mil)
- DTC P0102/P0103 - Mass Airflow (MAF) Sensor Circuit Input
- DTC P0112/P0113 - Intake Air Temperature (IAT) Circuit
- DTC P0116/P0117/P0118 - ECT Sensor Circuit
- DTC P0122/P0123 - Throttle Position (TP) Sensor Circuit Input
- DTC P0130/P0131/P0132/P0137/P0138 Front & Rear O2S Sensor CKT
- DTC P0133 - Front O2S Circuit Slow Response
- DTC P0134/P0136 - O2S Circuit, No Activity Detected
- DTC P0135/P0141 - O2S Heater Circuit Malfunction
- DTC P0201/P0202/P0203/P0204 - Injector Circuit Malfunction
- DTC P0300 - Random Misfire Detected
- DTC P0301/P0302/P0303/P0304 - Cylinder Misfire Detected
- DTC P0326 - Knock Sensor (KS) Circuit Range
- DTC P0335/P0336 - CKP Sensor Circuit Range/Malfunction
- DTC P0342/P0343 - CMP Sensor Circuit Malfunction
- DTC P0420 - Catalyst Efficiency Below Threshold
- DTC P0442/P0443/P0446/P0455 - EVAP Purge Control System
- DTC P0444/P0445 - EVAP Purge Control Valve Circuit
- DTC P0447/P0448 - EVAP Vent Control Valve Circuit
- DTC P0451 - Fuel Tank Pressure Sensor Signal Not Valid
- DTC P0452/P0453 - Fuel Tank Pressure Sensor Malfunction
- DTC P0501 - Vehicle Speed Sensor (VSS) Range
- DTC P0506/P0507 - Idle Rpm Is Not As Specified
- DTC P0605 - Internal Control Module ROM Error
- DTC P1123/P1124/P1127/P1128 - Air/Fuel Ratio Control
- DTC P1510/P1513/P1552/P1553 - ISC Actuator Circuit
- DTC P1586 - Encoding Signal Circuit Out Of Range (A/T & M/T)
- DTC P1605/P1606 - Acceleration/Rough Road Sensor Circuit
- DTC P1611/P1614 - Mil Request Signal Circuit
- Summary
- Wiring Diagrams
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
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.