DIAGNOSTIC TROUBLE CODE CHART HINT: Parameters Listed in the Chart May Not Be Exactly the Same As Your Reading Due to the Type of Instrument Or Other Factors

05–165 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

051MZ–06 DIAGNOSTIC TROUBLE CODE CHART HINT: Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other factors. If a malfunction code is displayed during the DTC check in check mode, check the circuit for the codes listed in the table below. For details of each code, turn to the page referred to under the ’’See page ’’ for the respec- tive ’’DTC No.’’ in the DTC chart. SAE CONTROLLED DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Open or short in mass air P0100 Mass Air Flow Circuit Mal- flow meter circuit f f (05–178) function S Mass air flow meter S ECM Mass Air Flow Circuit P0101 Range/Performance Prob- S Mass air flow meter f f (05–184) lem S Open or short in intake air temp. sensor circuit P0110 Engine Coolant Temp. Cir- S Intake air temp. sensor f f (05–185) cuit Malfunction (built into mass air flow meter) S ECM S Open or short in engine coolant temp. sensor cir- P0115 Engine Coolant Temp. Cir- cuit f f (05–188) cuit Malfunction S Engine coolant temp. sensor S ECM Engine Coolant Temp. Cir- S Cooling system P0116 cuit Range/Performance S Engine coolant temp. f f (05–191) Problem sensor S Open or short in throttle Throttle/Pedal Position P0120 position sensor circuit Sensor/Switch ”A” Circuit f f (05–192) S Throttle position sensor Malfunction S ECM Throttle/Pedal Position P0121 Sensor/Switch ”A” Circuit S Throttle position sensor f f (05–195) Range/Performance Prob- lem S Open or short in A/F sensor (bank 1, 2 sensor 1) circuit S A/F sensor (bank 1, 2 sensor 1) Insufficient Coolant Temp. P0125 S Air induction system for Closed Loop Fuel Con- f f (05–196) S Fuel pressure trol S Injector S Gas leakage on exhaust system S ECM S PCV hose connection S Thermostat S Cooling system P0128 Thermostat Malfunction S Engine coolant temp. f f (05–202) sensor S ECM

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 352 05–166 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) Oxygen Sensor Circuit S Open or short in heated P0136 Malfunction (Bank 1 Sen- oxygen sensor circuit f f (05–203) sor 2) S Heated oxygen sensor S Open or short in heater circuit of heated oxygen Oxygen Sensor Heater Cir- P0141 sensor cuit Malfunction (Bank 1 f f (05–205) S Heated oxygen sensor Sensor 2) heater S ECM S Air induction system S Injector blockage S Mass air flow meter S Engine coolant temp. sensor S Fuel pressure S Gas leakage on exhaust P0171 System too Lean (Fuel system f f (05–207) Trim) S Open or short in A/F sensor (bank 1, 2 sensor 1) circuit S A/F sensor (bank 1, 2 sensor 1) S ECM S PCV hose connection S Injector leak, blockage S Mass air flow meter S Engine coolant temp. sensor S Ignition system S Fuel pressure S Gas leakage on exhaust P0172 System too Rich (Fuel system f f (05–207) Trim) S Open or short in A/F sensor (bank 1, 2 sensor 1) circuit S A/F sensor (bank 1, 2 sensor 1) S ECM S PCV hose connection S Air induction system S Injector blockage S Mass air flow meter S Engine coolant temp. sensor S Fuel pressure S Gas leakage on exhaust P0174 System too Lean (Bank2) system f f (05–207) S Open or short in A/F sensor (bank 1, 2 sensor 1) circuit S A/F sensor (bank 1, 2 sensor 1) S ECM S PCV hose connection

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 353 05–167 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Injector leak, blockage S Mass air flow meter S Engine coolant temp. sensor S Ignition system S Fuel pressure S Gas leakage on exhaust P0175 System too Rich (Bank2) system f f (05–207) S Open or short in A/F sensor (bank 1, 2 sensor 1) circuit S A/F sensor (bank 1, 2 sensor 1) S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0300 Random/Multiple Cylinder S Mass air flow meter f*2 f (05–212) Misfire Detected S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0301 Cylinder 1 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0302 Cylinder 2 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 354 05–168 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0303 Cylinder 3 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0304 Cylinder 4 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0305 Cylinder 5 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection S Open or short in engine wire S Connector connection S Vacuum hose connection S Ignition system S Injector S Fuel pressure P0306 Cylinder 6 Misfire Detected S Mass air flow meter f*2 f (05–212) S Engine coolant temp. sensor S Compression pressure S Valve clearance S Valve timing S ECM S PCV hose connection

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 355 05–169 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Open or short in knock sensor 1 circuit P0325 Knock Sensor 1 Circuit S Knock sensor 1 (loose- f f (05–218) Malfunction (Bank 1) ness) S ECM S Open or short in knock sensor 2 circuit P0330 Knock Sensor 2 Circuit S Knock sensor 2 (loose- f f (05–218) Malfunction (Bank 2) ness) S ECM S Open or short in crankshaft position sensor circuit P0335 Crankshaft Position Sen- S Crankshaft position sen- f f (05–221) sor ”A” Circuit Malfunction sor S Crankshaft timing pulley S ECM S Open or short in camshaft position sensor circuit P0340 Camshaft Position Sensor S Camshaft position sensor f f (05–224) Circuit Malfunction S Camshaft timing gear S ECM S Gas leakage on exhaust system S A/F sensor (bank 1, 2 P0420 Catalyst System Efficiency sensor 1) f f (05–227) Below Threshold (Bank 1) S Heated oxygen sensor (bank 1 sensor 2) S Three–way catalytic con- verter S Hose or tube cracked, holed, damaged or insufficient seal S Fuel tank cap incorrectly installed S Fuel tank cap cracked or damaged S Vacuum hose cracked, holed, blocked, damaged or disconnected P0440 Evaporative Emission Con- S Fuel tank cracked, holed f f (05–230) trol System Malfunction or damaged S Charcoal canister cracked, holed or damaged S Open or short in vapor pressure sensor circuit S Vapor pressure sensor S Fuel tank over fill check valve cracked or damaged S ECM

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 356 05–170 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Vacuum hose cracked, holed blocked, damaged or disconnected ((1), (2), (3), (4), (5), (6), (7), (8), (9), (10) and (11) in Fig. 1) S Fuel tank cap incorrectly installed S Fuel tank cap cracked or damaged S Open or short in vapor pressure sensor circuit S Vapor pressure sensor S Open or short in VSV circuit for EVAP Evaporative Emission Con- S VSV for EVAP P0441 trol System Incorrect S Open or short in VSV cir- f f (05–235) Purge Flow cuit for CCV S VSV for CCV S Open or short in VSV circuit for pressure switch- ing valve S VSV for pressure switch- ing valve S Fuel tank cracked, holed or damaged S Charcoal canister cracked, holed or damaged S Fuel tank over fill check valve cracked or damaged S ECM Evaporative Emission Con- P0442 trol System Leak Detected S Same as DTC No. P0440 f f (05–230) (Small Leak) Evaporative Emission Con- P0446 trol System Vent Control S Same as DTC No. P0441 f f (05–235) Malfunction S Open or short in vapor Evaporative Emission Con- P0450 pressure sensor circuit trol System Pressure Sen- f f (05–249) S Vapor pressure sensor sor Malfunction S ECM S Open or short in vapor Evaporative Emission Con- P0451 pressure sensor circuit trol System Pressure Sen- f f (05–249) S Vapor pressure sensor sor Range/Performance S ECM

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 357 05–171 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Combination meter P0500 Vehicle Speed Sensor Mal- S Open or short in speed f f (05–251) function sensor circuit S ECM S Open or short in IAC valve circuit S IAC valve is stuck or closed P0505 Idle Control System Mal- S Open or short in A/C sig- f f (05–253) function nal circuit S Air induction system S ECM S PCV hose connection *1: MIL lights up *2: MIL light up or blinking MANUFACTURER CONTROLLED DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Open or short in A/F sensor circuit A/F Sensor Circuit Range/ S A/F sensor P1130 Performance Malfunction S Air induction system f f (05–256) (Bank 1 Sensor 1) S Fuel pressure S Injector S ECM S Open or short in A/F sensor circuit A/F Sensor Circuit Re- S A/F sensor P1133 sponse Malfunction (Bank S Air induction system f f (05–260) 1 Sensor 1) S Fuel pressure S Injector S ECM S Open or short in heater A/F Sensor Heater Circuit P1135 circuit of A/F sensor Malfunction (Bank 1 Sen- f f (05–263) S A/F sensor heater sor 1) S ECM A/F Sensor Circuit Range/ P1150 Performance Malfunction S Same as DTC No. P1130 f f (05–256) (Bank 2 Sensor 1) A/F Sensor Circuit Re- P1153 sponse Malfunction (Bank S Same as DTC No. P1133 f f (05–260) 2 Sensor 1) A/F Sensor Heater Circuit P1155 Malfunction (Bank 2 Sen- S Same as DTC No. P1135 f f (05–263) sor 1) S Ignition system S Open or short in IGF1 or IGT1 circuit from No.1 P1300 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.1) ECM S No.1 ignition coil with igniter S ECM

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 358 05–172 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) S Ignition system S Open or short in IGF2 or IGT2 circuit from No.2 P1305 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.2) ECM S No.2 ignition coil with igniter S ECM S Ignition system S Open or short in IGF2 or IGT3 circuit from No.3 P1310 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.3) ECM S No.3 ignition coil with igniter S ECM S Ignition system S Open or short in IGF1 or IGT4 circuit from No.4 P1315 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.4) ECM S No.4 ignition coil with igniter S ECM S Ignition system S Open or short in IGF2 or IGT5 circuit from No.5 P1320 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.5) ECM S No.5 ignition coil with igniter S ECM S Ignition system S Open or short in IGF1 or IGT6 circuit from No.6 P1325 Igniter Circuit Malfunction ignition coil with igniter to f f (05–265) (No.6) ECM S No.6 ignition coil with igniter S ECM S Open or short in crankshaft position sensor cir- Crankshaft Position Sen- cuit P1335 sor Circuit Malfunction S Crankshaft position sen-  f (05–272) (During engine running) sor S Camshaft timing gear S ECM VVT Sensor/Camshaft S Mechanical system P1346 position Sensor Circuit (Jumping teeth of timing f f (05–274) Range/Performance Prob- belt, belt stretched) lem (Bank 1) S ECM S Valve timing P1349 VVT System Malfunction S OCV f f (05–275) (Bank 1) S VVT controller assembly S ECM VVT Sensor/Camshaft P1350 position Sensor Circuit S Same as DTC No. P1345 f f (05–281) Malfunction (Bank 2)

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 359 05–173 DIAGNOSTICS – SFI SYSTEM (1MZ–FE)

DTC No. Detection Item Trouble Area MIL*1 Memory (See page) VVT Sensor/Camshaft P1351 position Sensor Circuit S Same as DTC No. P1346 f f (05–274) Range/Performance Prob- lem (Bank 2) P1354 VVT System Malfunction S Same as DTC No. P1349 f f (05–275) (Bank 2) S Short in stop light switch P1520 Stop Light Switch Signal signal circuit f f (05–283) Malfunction S Stop light switch S ECM S Open in back up power P1600 ECM BATT Malfunction source circuit f f (05–285) S ECM S Body ECU P1645 Body ECU Malfunction S A/C ECU f f (05–287) S Communication bus S Open or short in OCV cir- P1656 OCV Circuit Malfunction cuit f f (05–288) (Bank 1) S OCV S ECM S Open or short in OCV cir- P1663 OCV Circuit Malfunction cuit f f (05–288) (Bank 2) S OCV S ECM S Short in park/neutral position switch circuit P1780 Park/Neutral Position S Park/neutral position f f (05–291) Switch Malfunction switch S ECM B2795 Unmatched Key Code S Immobiliser system  f (05–898) B2796 No Communication in Im- S Immobiliser system  f (05–899) mobiliser System B2797 Communication Malfunc- S Immobiliser system  f (05–901) tion No.1 *1: MIL lights up *2: MIL light up or blinking

2002 HIGHLANDER REPAIR MANUAL (RM918U)

AuthorĂ: DateĂ: 360