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 MANUALSISUZU1996TROOPER S, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (ENGINE CONTROLS - TESTS W/CODES - 2.6L 4-CYL)
1996 Isuzu Trooper S, Automatic
Section 17 (Engine Controls - Tests W/Codes - 2.6L 4-CYL)
1996 Isuzu Trooper S, AutomaticSECTION Section 17 (Engine Controls - Tests W/Codes - 2.6L 4-CYL)
WARNING: This page is about a different car, the 1996 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Circuit Testing
- Notes
- DTC P0106 - Map Sensor System Performance
- DTC P0107 - Map Sensor Circuit Low Voltage
- DTC P0108 - Map Sensor Circuit High Voltage
- DTC P0112 - IAT Sensor Circuit Low Voltage
- DTC P0113 - IAT Sensor Circuit High Voltage
- DTC P0117 - ECT Sensor Circuit Low Voltage
- DTC P0118 - ECT Sensor Circuit High Voltage
- DTC P0121 - TP Sensor System Performance
- DTC P0122 - TP Sensor Circuit Low Voltage
- DTC P0123 - TP Sensor Circuit High Voltage
- DTC P0125 - ECT Excessive Time To Reach Closed Loop
- DTC P0131 - Ho2S Circuit Low Voltage Sensor 1
- DTC P0132 - Ho2S Circuit High Voltage Sensor 1
- DTC P0133 - Ho2S Slow Response Sensor 1
- DTC P0134 - Ho2S Insufficient Activity Sensor 1
- DTC P0135 - Ho2S Heater Circuit Sensor 1
- DTC P0137 - Ho2S Circuit Low Voltage Sensor 2
- DTC P0138 - Ho2S Circuit High Voltage Sensor 2
- DTC P0140 - Ho2S Insufficient Activity Sensor 2
- DTC P0141 - Ho2S Heater Circuit Sensor 2
- DTC P0171 - Fuel Trim System Lean
- DTC P0172 - Fuel Trim System Rich
- DTC P0201 - Injector 1 Control Circuit
- DTC P0202 - Injector 2 Control Circuit
- DTC P0203 - Injector 3 Control Circuit
- DTC P0204 - Injector 4 Control Circuit
- DTC P0300 - Engine Misfire Detected
- DTC P0336 - CKP Sensor Circuit 58X Reference Signal
- DTC P0337 - CKP Sensor Circuit Low Frequency
- DTC P0341 - Camshaft Position Sensor Circuit
- DTC P0342 - Camshaft Position Sensor Circuit Low
- DTC P0351 - Ignition Control Circuit
- DTC P0401 - EGR System Insufficient Flow
- DTC P0420 - TWC System Low Efficiency
- DTC P0441 - EVAP System No Flow During Purge
- DTC P0502 - VSS Circuit Low Input
- DTC P0506 - IAC System Rpm Low
- DTC P0507 - IAC System Rpm High
- DTC P0562 - System Voltage Low
- DTC P0563 - System Voltage High
- DTC P0601 - Pcm Memory
- DTC P1106 - Map Sensor Circuit Intermittent High Voltage
- DTC P1107 - Map Sensor Circuit Intermittent Low Voltage
- DTC P1111 - IAT Sensor Circuit Intermittent High Voltage
- DTC P1112 - IAT Sensor Circuit Intermittent Low Voltage
- DTC P1114 - ECT Sensor Circuit Intermittent Low Voltage
- DTC P1115 - ECT Sensor Circuit Intermittent High Voltage
- DTC P1121 - TP Sensor Circuit Intermittent High Voltage
- DTC P1122 - TP Sensor Circuit Intermittent Low Voltage
- DTC P1133 - Ho2S Insufficient Switching Sensor 1
- DTC P1134 - Ho2S Transition Time Ratio Bank 1, Sensor 1
- DTC P1171 - Fuel System Lean During Acceleration
- DTC P1390 - G-Sensor Circuit - Intermittent Low Voltage
- DTC P1391 - G-Sensor Circuit Performance
- DTC P1392 - G-Sensor Circuit - Low Voltage
- DTC P1393 - G-Sensor Circuit - High Voltage
- DTC P1394 - G-Sensor Circuit - Intermittent High Voltage
- DTC P1406 - EGR Valve Pintle Position Circuit
- DTC P1441 - EVAP System Flow During Non-Purge
- DTC P1442 - EVAP SYS Switch - Hi Voltage During Ignition On
- DTC P1640 - Driver 1 - Input Voltage High
- Summary
- Wiring Diagrams
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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.