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.
2002 Suzuki Vitara JLS, 2D Utility, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Self-Diagnostics
- Introduction
- General Description
- Self-Diagnostic System
- Component Locations
- Summary
- Diagnostic Trouble Code Definitions
- Systems Tests
- Diagnostic Tests
- Notes
- DTC P0031 & DTC P0032
- DTC P0037 Or DTC P0038
- DTC P0101: Mass Air Flow (MAF) Sensor Circuit Performance Problem
- DTC P0102: Mass Air Flow (MAF) Sensor Circuit, Low Input
- DTC P0103: Mass Air Flow (MAF) Sensor Circuit, High Input
- DTC P0107 Or P0108
- DTC P0111: Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
- DTC P0112: Intake Air Temperature (IAT) Sensor Circuit, Low Input
- DTC P0113: Intake Air Temperature (IAT) Sensor Circuit, High Input
- DTC P0116: Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem
- DTC P0117: Engine Coolant Temperature (ECT) Sensor Circuit, Low Input
- DTC P0118: Engine Coolant Temperature (ECT) Sensor Circuit, High Input
- DTC P0121: Throttle Position (TP) Sensor Circuit Performance Problem
- DTC P0122: Throttle Position (TP) Sensor Circuit, Low Input
- DTC P0123: Throttle Position (TP) Sensor Circuit, High Input
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Operation
- DTC P0128: Coolant Thermostat Inoperative
- DTC P0131 Or P0132
- DTC P0133: Ho2S No. 1 Circuit, Slow Response
- DTC P0134: Ho2S No. 1 Circuit, No Activity Detected
- DTC P0137: Heated Oxygen Sensor No. 2 Circuit, Low Voltage
- DTC P0138 Or P0140
- DTC P0171 Or DTC P0172
- DTC P0300, P0301, P0302, P0303 Or P0304
- DTC P0327 Or P0328
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit Malfunction
- DTC P0340: Camshaft Position (CMP) Sensor Circuit Malfunction
- DTC P0401 Or P0402
- DTC P0403: EGR Flow Malfunction
- DTC P0420: Catalyst System Low Efficiency
- DTC P0441: EVAP System - Incorrect Purge Flow
- DTC P0442 Or P0455
- DTC P0443: EVAP Circuit, Purge Control Valve Circuit Malfunction
- DTC P0446: EVAP System Vent Control - Circuit Malfunction
- DTC P0452 Or P0453
- DTC P0461: Fuel Level Sensor Circuit Performance Problem
- DTC P0463: Fuel Level Sensor Circuit, High Input
- DTC P0464: Fuel Level Sensor Circuit - Intermittent
- DTC P0496: EVAP System - High Purge Flow
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
- DTC P0506 Or P0507
- DTC P0601: Internal Control Module Memory Check Sum Error
- DTC P1500: Starter Signal Circuit Malfunction
- DTC P1510: Pcm Back-Up Power Supply Malfunction
Factory Service Tools
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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.