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Obd 1 -Hyundai Accent-Ponny-Excel Manual Diagnostic Guide

Hyundai-Accent-1994 OBD 1 GUIDE

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Obd 1 -Hyundai Accent-Ponny-Excel Manual Diagnostic Guide

 

Hyundai-Accent-1994 OBD 1 GUIDE

Accessing trouble codes

  • Trouble codes are displayed by the malfunction indicator lamp (MIL). Ensure ignition switched OFF.
  • Bridge data link connector (DLC) terminal 10 and earth with a switched lead – contacts normally open Fig. 1 .
  • Switch ignition ON.
  • Operate switch for 2,5-7 seconds.
  • Count MIL flashes. Note trouble codes. Compare with trouble code table. Each trouble code consists of two groups of one or more flashes Fig. 2 .
  • Long flashes indicate the ‘tens’ of the trouble code Fig. 2 [A].
  • Short flashes indicate the ‘units’ of the trouble code Fig. 2 [C].
  • A short pause separates each flash Fig. 2 [B].
  • A long pause separates each trouble code Fig. 2 [D].
  • For example: Trouble code 12 displayed Fig. 2 .
  • Repeat operation. Note the trouble codes.
  • Compare with trouble code table. Rectify faults as necessary.

HYUNDAI ACCENT OBD 1 GUIDE

Erasing trouble codes

Ensure ignition switched OFF. Disconnect battery earth lead. Wait 15 seconds.
Reconnect battery earth lead.

WARNING: Disconnecting the battery may erase memory from electronic units (e.g. radio, clock).

Trouble code identification

Trouble code

 

 

Fault location

 

 

Probable cause

 

1122

 

Engine control module (ECM) – circuit malfunction

 

Wiring, ECM

 

1169

 

Ignition signal – malfunction

 

Wiring, ignition system

 

1234

 

Engine control (EC) relay – circuit malfunction

 

Wiring, EC relay

 

2222

 

Start of output

 

 

3112

 

Injector 1 – circuit malfunction

 

Wiring, injector

 

3114

 

Idle air control (IAC) valve – circuit malfunction

 

Wiring, IAC valve, ECM

 

3116

 

Injector 2 – circuit malfunction

 

Wiring, injector

 

3122

 

Idle air control (IAC) valve – circuit malfunction

 

Wiring, IAC valve, ECM

 

 

3128

 

 

Heated oxygen sensor (HO2S) – malfunction

 

Wiring, HO2S, mechanical fault, fuel system, fuel pressure, ECM

 

3135

 

Evaporative emission (EVAP) canister purge valve – malfunction

 

Wiring, EVAP canister purge valve, ECM

 

3138

 

AC relay – malfunction

 

Wiring, AC relay

 

3145

 

Engine coolant temperature (ECT) sensor – circuit malfunction

 

Wiring, ECT sensor, ECM

 

 

3147

 

Crankshaft position (CKP) sensor/engine speed (RPM) sensor -circuit malfunction

 

 

Wiring, CKP/RPM sensor, ECM

 

3153

 

Throttle position (TP) sensor – circuit malfunction

 

Wiring, TP sensor, ECM

 

3159

 

Vehicle speed sensor (VSS) – circuit malfunction

 

Wiring, VSS, ECM

 

3222

 

Camshaft position (CMP) sensor – signal malfunction

 

Wiring, CMP sensor, mechanical fault, ECM

 

3234

 

Injector 4 – circuit malfunction

 

Wiring, injector

 

3235

 

Injector 3 – circuit malfunction

 

Wiring, injector

 

3333

 

End of output

 

 

 

4151

 

 

Air/fuel control – malfunction

 

Wiring, HO2S, fuel system, fuel pressure, mechanical fault, ECM

 

4444

 

No fault

 

 

5111

 

Manifold absolute pressure (MAP) sensor – circuit malfunction

 

Wiring, MAP sensor, ECM

 

5112

 

Intake air temperature (IAT) sensor – circuit malfunction

 

Wiring, IAT sensor, ECM

 

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