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Wiring diagrams- Abbreviations
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Repair manual
Testing & Diagnostics Lexus IS I
Step-by-step instructions on "Testing & Diagnostics" for Lexus IS I (1999–2005). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
4subsections
44articles
68illustrations
Engine Controls - Basic Diagnostic Procedures
3 articlesEngine Controls - Self-Diagnostics
36 articles- Engine Controls - Self-Diagnostics: Overview
- Engine Controls - Self-Diagnostics: Diagnosis 15
- Engine Controls - Self-Diagnostics: Other 1
- DTC P0100: MASS AIRFLOW (MAF) SENSOR CIRCUIT
- DTC P0110: INTAKE AIR TEMPERATURE (IAT) SENSOR CIRCUIT
- DTC P0115: ENGINE COOLANT TEMPERATURE (ECT) SENSOR CIRCUIT
- DTC P0120: THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION
- DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0128: THERMOSTAT FAULT
- DTC P0130 OR DTC P0150: HEATED OXYGEN SENSOR CIRCUIT MALFUNCTION
- DTC P0133 OR DTC P0153: HEATED OXYGEN SENSOR CIRCUIT SLOW RESPONSE
- DTC P0135, DTC P0141, DTC P0155 OR DTC P0161
- DTC P0136 OR DTC P0156: HEATED OXYGEN SENSOR CIRCUIT MALFUNCTION
- DTC P0171, DTC P0172, DTC P0174 OR DTC P0175
- DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 OR DTC P0306
- DTC P0325 OR DTC P0330: KNOCK SENSOR CIRCUIT MALFUNCTION
- DTC P0335 OR DTC P1335
- DTC P0340: CAMSHAFT POSITION (CMP) SENSOR CIRCUIT
- DTC P0420 OR DTC P0430: CATALYST SYSTEM
- DTC P0440: EVAP SYSTEM MALFUNCTION
- DTC P0441 OR DTC P0446
- DTC P0450 OR DTC P0451
- DTC P0500: VEHICLE SPEED SENSOR (VSS) MALFUNCTION
- DTC P1120: ACCELERATOR PEDAL POSITION SENSOR CIRCUIT MALFUNCTION
- DTC P1125: THROTTLE CONTROL MOTOR CIRCUIT MALFUNCTION
- DTC P1126: ELECTROMAGNETIC CLUTCH CIRCUIT MALFUNCTION
- DTC P1127: ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) ACTUATOR POWER SOURCE CIRCUIT MALFUNCTION
- DTC P1129: ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) MALFUNCTION
- DTC P1300: IGNITOR CIRCUIT MALFUNCTION
- DTC P1335: CRANKSHAFT POSITION SENSOR CIRCUIT MALFUNCTION (DURING ENGINE RUNNING)
- DTC P1349: VARIABLE VALVE TIMING (VVT) SYSTEM MALFUNCTION
- DTC P1520: STOPLIGHT SWITCH SIGNAL MALFUNCTION
- DTC P1600: ECM BATT MALFUNCTION
- DTC P1633: ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) CIRCUIT ECM MALFUNCTION
- DTC P1645: BODY ECU MALFUNCTION
- DTC P1656: OIL CONTROL VALVE (OCV) CIRCUIT MALFUNCTION