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Repair manual
Testing & Diagnostics Toyota Highlander I
Step-by-step instructions on "Testing & Diagnostics" for Toyota Highlander I (2001–2003). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
7subsections
102articles
580illustrations
Engine Controls - Basic Diagnostic Procedures - 4-CYLINDER
3 articlesEngine Controls - Basic Diagnostic Procedures - V6 & V8
3 articlesEngine Control System Self-Diagnostics - 4-CYLINDER
42 articles- Engine Control System Self-Diagnostics - 4-CYLINDER: Overview
- Engine Control System Self-Diagnostics - 4-CYLINDER: Diagnosis 15
- Engine Control System Self-Diagnostics - 4-CYLINDER: Component Locations 1
- Engine Control System Self-Diagnostics - 4-CYLINDER: Other 2
- DTC P0100: MASS AIRFLOW METER CIRCUIT
- DTC P0101: MASS AIRFLOW METER CIRCUIT RANGE/PERFORMANCE
- DTC P0110: INTAKE AIR TEMPERATURE SENSOR CIRCUIT
- DTC P0115: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT
- DTC P0116: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0120: THROTTLE POSITION SENSOR CIRCUIT
- DTC P0121: THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0128: THERMOSTAT MALFUNCTION
- DTC P0136 OR DTC P0156: HEATED OXYGEN SENSOR NO. 2 CIRCUIT
- DTC P0141 OR DTC P0161: HEATED OXYGEN SENSOR NO. 2 HEATER CIRCUIT
- DTC P0171, DTC P0172, DTC P0174 OR DTC P0175: SYSTEM TOO LEAN/RICH
- DTC P0300: RANDOM MISFIRE DETECTED
- DTC P0301: CYLINDER NO. 1 MISFIRE DETECTED, DTC P0302: CYLINDER NO. 2 MISFIRE DETECTED, DTC P0303: CYLINDER NO. 3 MISFIRE DETECTED &/OR DTC P0304: CYLINDER NO. 4 MISFIRE DETECTED
- DTC P0325: KNOCK SENSOR CIRCUIT
- DTC P0335 OR DTC P1335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT
- DTC P0420 OR DTC P0430: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD
- DTC P0440: EVAPORATIVE EMISSION CONTROL SYSTEM, OR DTC P0442: EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED
- DTC P0441: INCORRECT EVAP PURGE FLOW, OR DTC P0446: EVAP VENT CONTROL CIRCUIT
- DTC P0450: EVAP PRESSURE SENSOR CIRCUIT, OR DTC P0451: EVAP PRESSURE SENSOR RANGE/PERFORMANCE
- DTC P0500: VEHICLE SPEED SENSOR CIRCUIT
- DTC P0505: IDLE AIR CONTROL SYSTEM CIRCUIT
- DTC P1130 OR DTC P1150: AIR/FUEL SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P1133 OR DTC P1153: AIR/FUEL SENSOR CIRCUIT RESPONSE
- DTC P1135 OR DTC P1155: AIR/FUEL SENSOR HEATER CIRCUIT
- DTC P1300: IGNITOR NO. 1 CIRCUIT MALFUNCTION
- DTC P1305: IGNITOR NO. 2 CIRCUIT MALFUNCTION
- DTC P1310: IGNITOR NO. 3 CIRCUIT MALFUNCTION
- DTC P1315: IGNITOR NO. 4 CIRCUIT MALFUNCTION
- DTC P1335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P1346: VARIABLE VALVE TIMING CIRCUIT RANGE/PERFORMANCE
- DTC P1349: VARIABLE VALVE TIMING SYSTEM MALFUNCTION
- DTC P1520: STOPLIGHT SWITCH SIGNAL CIRCUIT
- DTC P1600: ECM BATT CIRCUIT
- DTC P1645: BODY ECU MALFUNCTION
- DTC P1656: OIL CONTROL VALVE MALFUNCTION
- DTC P1780: PARK/NEUTRAL POSITION SWITCH CIRCUIT
Engine Control System Self-Diagnostics - V6
45 articles- Engine Control System Self-Diagnostics - V6: Overview
- Engine Control System Self-Diagnostics - V6: Diagnosis 17
- Engine Control System Self-Diagnostics - V6: Component Locations 1
- Engine Control System Self-Diagnostics - V6: Other 2
- DTC P0100: MASS AIRFLOW METER CIRCUIT
- DTC P0101: MASS AIRFLOW METER CIRCUIT RANGE/PERFORMANCE
- DTC P0110: INTAKE AIR TEMPERATURE SENSOR CIRCUIT
- DTC P0115: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT
- DTC P0116: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0120: THROTTLE POSITION SENSOR CIRCUIT
- DTC P0121: THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0128: THERMOSTAT MALFUNCTION
- DTC P0136: HEATED OXYGEN SENSOR NO. 2 CIRCUIT
- DTC P0141: HEATED OXYGEN SENSOR NO. 2 HEATER CIRCUIT
- DTC P0171, DTC P0172, DTC P0174 OR DTC P0175: SYSTEM TOO LEAN/RICH
- DTC P0300: RANDOM MISFIRE DETECTED
- DTC P0301: CYLINDER NO. 1 MISFIRE DETECTED, DTC P0302: CYLINDER NO. 2 MISFIRE DETECTED, DTC P0303: CYLINDER NO. 3 MISFIRE DETECTED, DTC P0304: CYLINDER NO. 4 MISFIRE DETECTED, DTC P0305: CYLINDER NO. 5 MISFIRE DETECTED &/OR DTC P0306: CYLINDER NO. 6 MISFIRE DETECTED
- DTC P0325 OR DTC P0330: KNOCK SENSOR CIRCUIT
- DTC P0335 OR DTC P1335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT
- DTC P0420: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD
- DTC P0440: EVAPORATIVE EMISSION CONTROL SYSTEM OR DTC P0442: EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED
- DTC P0441: INCORRECT EVAP PURGE FLOW OR DTC P0446: EVAP VENT CONTROL CIRCUIT
- DTC P0450: EVAP PRESSURE SENSOR CIRCUIT OR DTC P0451: EVAP PRESSURE SENSOR RANGE/PERFORMANCE
- DTC P0500: VEHICLE SPEED SENSOR CIRCUIT
- DTC P0505: IDLE AIR CONTROL SYSTEM CIRCUIT
- DTC P1130 OR DTC P1150: AIR/FUEL SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P1133 OR DTC P1153: AIR/FUEL SENSOR CIRCUIT RESPONSE
- DTC P1135 OR DTC P1155: AIR/FUEL SENSOR HEATER CIRCUIT
- DTC P1300: IGNITOR NO. 1 CIRCUIT MALFUNCTION
- DTC P1305: IGNITOR NO. 2 CIRCUIT MALFUNCTION
- DTC P1310: IGNITOR NO. 3 CIRCUIT MALFUNCTION
- DTC P1315: IGNITOR NO. 4 CIRCUIT MALFUNCTION
- DTC P1320: IGNITOR NO. 5 CIRCUIT MALFUNCTION
- DTC P1325: IGNITOR NO. 6 CIRCUIT MALFUNCTION
- DTC P1335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P1346 OR DTC P1351: VARIABLE VALVE TIMING CIRCUIT RANGE/PERFORMANCE
- DTC P1349 OR DTC P1354: VARIABLE VALVE TIMING SYSTEM MALFUNCTION
- DTC P1350: VARIABLE VALVE TIMING SENSOR CIRCUIT (BANK NO. 2)
- DTC P1520: STOPLIGHT SWITCH SIGNAL CIRCUIT
- DTC P1600: ENGINE CONTROL MODULE BATT CIRCUIT
- DTC P1645: BODY ECU MALFUNCTION
- DTC P1656 OR DTC P1663: OIL CONTROL VALVE MALFUNCTION
- DTC P1780: PARK/NEUTRAL POSITION SWITCH CIRCUIT