LEXUS LX470 UZJ100 series New Car Features NCF230U All (EN)

FOREWORD To assist you in your service activities, this manual explains the main characteristics of the 2003 model year vehicles, in particular providing a technical explanation of the construction and operation of new mechanisms and new technology used. CAUTION, NOTICE, REFERENCE and NOTE are used in the following ways: All information contained herein is the most up-to-date at the time of publication. We reserve the right to make changes without prior notice.  2002 TOYOTA MOTOR CORPORATION All rights reserved. This book may not be repro- duced or copied, in whole or in part, without the written permission of Toyota Motor Corporation. First Printing: Jul.

31, 2002 01-020731-00 CAUTION A potentially hazardous situation which could result in injury to people may occur if instructions on what to do or not do are ignored. NOTICE Damage to the vehicle or components may occur if instructions on what to do or not do are ignored. REFERENCE Explains the theory behind mechanisms and techniques. NOTE Notes or comments not included under the above 3 titles.

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1 GENERAL 2003 FEATURES

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2 GENERAL 2003 FEATURES GENERAL 2003 FEATURES DESCRIPTION The 2003 models have the following systems: System Outline Model Name DTC (Diagnostic Trouble Code) To comply with the OBD-II regulations, all the DTC (Diagnostic Trouble Code) have been made to correspond to the SAE controlled codes. Some of the DTC have been further divided into smaller detection areas than in the past, and new DTC have been assigned to them. LS430, GS430/300, SC430, ES300, IS300, LX470 To comply with the OBD-II regulations, all the DTC (Diagnostic Trouble Code) have been made to correspond to the SAE controlled codes. RX300

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GENERAL 2003 FEATURES 3 The following table shows part of DTC which were modified from the old DTC and which were newly established. See Repair Manual of each 2003 model for the details.

1 New DTC Old DTC Detection Item New DTC Old DTC Detection Item P0010 P1656 Camshaft position “A” actuator circuit (Bank 1) P0063 P0167 Oxygen sensor heater control circuit low (Bank 2 Sensor 3) P0011 P1349 Camshaft position “A” – timing over-advanced or system performance (Bank 1) P0064 Oxygen sensor heater control circuit high (Bank 2 Sensor 3) P0012 Camshaft position “A” – timing over-retarded (Bank 1) P0095 P1115 Intake air temperature sensor 2 circuit P0016 P0336 Crankshaft position – camshaft position correlation (Bank 1 Sensor A) P0097 — Intake air temperature sensor 2 circuit low P1346 P0098 — Intake air temperature sensor 2 circuit high P0018 P1351 Crankshaft position – Camshaft position correlation (Bank 2 Sensor A) P0102 — Mass or volume air flow circuit low input P0020 P1663 Camshaft position “A” actuator circuit (Bank 2) P0103 — Mass or volume air flow circuit high input P0021 P1354 Camshaft position “A” – Timing over-advanced or system performance (Bank 2) P0107 — Manifold absolute pressure/Barometric pressure circuit low input P0022 Camshaft position “A” – Timing over-retarded (Bank 2) P0108 — Manifold absolute pressure/Barometric pressure circuit high input P0031 P0135 Oxygen sensor heater control circuit low (Bank 1 Sensor 1) P0112 P0110 Intake air temperature circuit low input P0032 Oxygen sensor heater control circuit High (Bank 1 Sensor 1) P0113 Intake air temperature circuit high input P0037 P0141 Oxygen sensor heater control circuit low (Bank 1 Sensor 2) P0117 P0115 Engine coolant temperature circuit low input P0038 Oxygen sensor heater control circuit High (Bank 1 Sensor 2) P0118 Engine coolant temperature circuit high input P0043 P0147 Oxygen sensor heater control circuit low (Bank 1 Sensor 3) P0120 P1230 Throttle/Pedal position sensor/ Switch “A” circuit P0044 Oxygen sensor heater control circuit High (Bank 1 Sensor 3) P0122 — Throttle/Pedal position sensor/ Switch “A” circuit low input P0051 P0155 Oxygen sensor heater control circuit low (Bank 2 Sensor 1) P0123 — Throttle/Pedal position sensor/ Switch “A” circuit high input P0052 Oxygen sensor heater control circuit high (Bank 2 Sensor 1) P0125 P0116 Insufficient coolant temperature for close loop fuel control P0057 P0161 Oxygen sensor heater control circuit low (Bank 2 Sensor 2) P0134 P0125 Oxygen sensor circuit no activity detected (Bank 1 Sensor 1) P0058 Oxygen sensor heater control circuit high (Bank 2 Sensor 2) P0135 — Oxygen sensor heater circuit (Bank 1 Sensor 1)

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