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.
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HOMESERVICE MANUALSISUZU1992RODEO LS, 4WD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TESTS W/CODES - 2.6LCODE CHARTSTROUBLE CODE DEFINITION
1992 Isuzu Rodeo LS, 4WD, Standard
Trouble Code Definition
1992 Isuzu Rodeo LS, 4WD, StandardSECTION Trouble Code Definition
TROUBLE CODE IDENTIFICATION
| Code | System Affected | Probable Cause |
|---|---|---|
| 12 | System Normal | System Normal |
| 13 | O2 Sensor Circuit | Sensor/Circuit, ECM |
| 14 | Coolant Temperature Sensor (Shorted) | Temperature Sensor/Circuit, ECM |
| 15 | Coolant Temperature Sensor (Open) | Temperature Sensor/Circuit, ECM |
| 21 | Throttle Valve Switch (Idle & Full Throttle) | Switch/Circuit, ECM |
| 22 | Starter Signal | Circuit, ECM |
| 23 | Power Transistor (Shorted) | Transistor/Circuit, ECM |
| 25 | Pressure Regulator VSV | VSV/Circuit, ECM |
| 26 | Canister Purge VSV | VSV/Circuit, ECM |
| 27 | Canister Purge VSV | VSV/Circuit, ECM |
| 32 | EGR System | EGR Valve, Backpressure Transducer, Vacuum Switching Valve |
| 33 | Fuel Injector Circuit (Open or Grounded) | Wiring, Dropping Resistor, ECM |
| 34 | EGR Temperature Sensor | Sensor/Circuit, ECM |
| 35 | Power Transistor (Open) | Transistor/Circuit, ECM |
| 41 | Crank Angle Sensor | Sensor/Circuit, ECM |
| 43 | Throttle Valve Switch (Idle Position) | Switch/Circuit, ECM |
| 44 | O2 Sensor (Lean/Rich) | Injectors, Fuel Pressure, Airflow Sensor, O2 Sensor Circuit, Coolant Temperature Sensor, ECM |
| 45 | O2 Sensor (Lean/Rich) | Injectors, Fuel Pressure, Airflow Sensor, O2 Sensor Circuit, Coolant Temperature Sensor, ECM |
| 51 | Faulty ECM ROM | Defective ECM |
| 52 | Faulty ECM RAM | Defective ECM |
| 53 | Pressure Regulator VSV | VSV/Circuit, ECM |
| 54 | Power Transistor (Grounded) | Transistor/Circuit, ECM |
| 61 | Airflow Sensor | Sensor/Circuit, ECM |
| 62 | Airflow Sensor | Sensor/Circuit, ECM |
| 63 | Vehicle Speed Sensor | Sensor/Circuit, ECM |
| 64 | Fuel Injector Circuit (ECM Transistor) | Wiring Harness, ECM |
| 65 | Throttle Valve Switch (Full Throttle) | Switch/Circuit, ECM |
RENDER: 1.0x
NO RELATED
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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.