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DI­167

DIAGNOSTICS ­ ENGINE (5VZ­FE)

DI0RM­17

DIAGNOSTIC TROUBLE CODE CHART

HINT: Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors. If a malfunction code is displayed during the DTC check in the check mode, check the circuit for the codes listed in the table below. For details of each code, refer to the ''See page'' under the respective ''DTC No.'' in the DTC chart. SAE DEFINED

DTC No. (See page) P0100 (DI­175) P0101 (DI­179) P0110 (DI­180) Detection Item Trouble Area S Open or short in mass air flow meter circuit S Mass air flow meter S ECM S Mass air flow meter S Open or short in intake air temp. sensor circuit S Intake air temp. sensor (built into mass air flow meter) S ECM S Open or short in engine coolant temp. sensor circuit S Engine coolant temp. sensor S ECM S Cooling system S Engine coolant temp. sensor S Open or short in throttle position sensor circuit S Throttle position sensor S ECM S Throttle position sensor S PCV hose connection S PCV hose S Open or short in A/F sensor (bank 1 sensor 1) circuit S A/F sensor (bank 1 sensor 1) S Air induction system S Fuel pressure S Injector S Gas leak of exhaust system S ECM S Thermostat S Cooling system S Engine coolant temp. sensor S ECM S Open or short in heated oxygen sensor circuit S Heated oxygen sensor S Gas leak on exhaust system S Open or short in heater circuit of heated oxygen sensor S Heated oxygen sensor S ECM f f MIL*1 Memory

Mass Air Flow Circuit Malfunction Mass Air Flow Circuit Range/ Performance Problem Intake Air Temperature Circuit Malfunction

f

f

f

f

f

f

P0115 (DI­184)

Engine Coolant Temperature Circuit Malfunction Engine Coolant Temperature Circuit Range/Performance Problem Throttle Pedal Position Sensor/ Switch "A" Circuit Malfunction Throttle Pedal Position Sensor/ Switch "A" Circuit Range/Performance Problem

f

f

P0116 (DI­188) P0120 (DI­190)

f

f

f

f

P0121 (DI­194)

f

f

P0125 (DI­195)

Insufficient Coolant Temperature for Closed Loop Fuel Control

f

f

P0128 (DI­200)

Thermostat Malfunction

P0136 (DI­201)

O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)

P0141 (DI­203)

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

f

f

2002 TOYOTA TACOMA (RM921U)

DI­168

DIAGNOSTICS ­ ENGINE (5VZ­FE)

P0171 (DI­205)

System too Lean (Fuel Trim)

S Air induction system S PCV hose connection S PCV hose S Injector blockage S Mass air flow meter S Engine coolant temp. sensor S Fuel pressure S Gas leak on exhaust system S Open or short in A/F sensor (Bank 1 sensor 1) circuit S A/F sensor (bank 1 sensor 1) S ECM S Injector leak, blockage S Mass air flow meter S Engine coolant temp. sensor S Ignition system S Fuel pressure S Gas leak on exhaust system S Open or short in A/F sensor (bank 1 sensor 1) circuit S A/F sensor (bank 1 sensor 1) S ECM S Open or short engine wire S Connector connection S Vacuum hose connection S PCV hose connection S PCV hose S Ignition system S Injector S Fuel pressure S EGR system S Mass air flow meter S Engine coolant temp. sensor tem . S Compression pressure S Valve clearance S Valve timing S ECM S Open or short in knock sensor 1 circuit S Knock sensor 1 (looseness) S ECM S Open or short in knock sensor 2 circuit S Knock sensor 2 (looseness) S ECM S Open or short in crankshaft position sensor circuit S Crankshaft position sensor S Crankshaft timing pulley S ECM S Open or short in camshaft position sensor circuit S Camshaft position sensor S RH camshaft timing pulley S ECM S Gas leakage on exhaust system S A/F sensor (bank 1 sensor 1) S Heated oxygen sensor (bank 1 sensor 2) S Three­way catalytic converter

f

f

P0172 (DI­205)

System too Rich (Fuel Trim)

f

f

P0300 (DI­210) P0301 (DI­210) P0302 (DI­210) P0303 (DI­210) P0304 (DI­210) P0305 (DI­210) P0306 (DI­210) P0325 (DI­215)

Random/Multiple Cylinder Misfire Detected Cylinder 1 Misfire Detected

Cylinder 2 Misfire Detected

Cylinder 3 Misfire Detected

f*2

f

Cylinder 4 Misfire Detected

Cylinder 5 Misfire Detected

Cylinder 6 Misfire Detected Knock Sensor 1 Circuit Malfunction

f

f

P0330 (DI­215)

Knock Sensor 2 Circuit Malfunction

f

f

P0335 (DI­218)

Crankshaft Position Sensor "A" Circuit Malfunction

f

f

P0340 (DI­220)

Camshaft Position Sensor Circuit Malfunction

f

f

P0420 (DI­222)

Catalyst System Efficiency Below Threshold (Bank 1)

f

f

2002 TOYOTA TACOMA (RM921U)

DI­169

DIAGNOSTICS ­ ENGINE (5VZ­FE)

P0440 (DI­225)

Evaporative Emission Control System Malfunction

S Hose or tube cracked, hole, damaged or loose seal ((3) or (9) in Fig. 1) S Fuel tank cap incorrectly installed S Fuel tank cap cracked or damaged S Vacuum hose cracked, holed, blocked, damaged or disconnected ((1), (2), (4), (5), (6), (7), (8), (10)and (11) in Fig. 1) S Fuel tank cracked, holed 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 S Vacuum hose cracks, 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 S VSV for EVAP S Open or short in VSV circuit for CCV S VSV for CCV S Open or short in VSV circuit for pressure switching valve S VSV for pressure switching valve S Fuel tank cracked, holed or damaged S Charcoal canister cracked, holed or damaged S Fuel tank over fill check valve cracked damaged S ECM S Same as DTC No. P0440

f

f

P0441 (DI­234)

Evaporative Emission Control System Incorrect Purge Flow

f

f

P0442 (DI­225) P0446 (DI­234) P0450 (DI­251) P0451 (DI­251)

Evaporative Emission Control System Leak detected (Small Leak) Evaporative Emission Control System Vent Control Malfunction Evaporative Emission Control System Pressure Sensor Malfunction Evaporative Emission Control System Pressure Sensor Range/ Performance

f

f

S Same as DTC No. P0441

f

f

S Open or short in vapor pressure sensor circuit SV Vapor pressure sensor S ECM

f

f

P0500 (DI­253)

Vehicle Speed Sensor Malfunction

S Open or short in speed signal circuit S Combination meter S ECM S Open or short in speed sensor circuit for ABS S ABS ECU S PCV hose connection S PCV hose S Open or short in IAC valve circuit S IAC valve is stuck or closed S Open or short in A/C signal circuit S Air induction system S ECM

f

f

P0505 (DI­256)

Idle Control System Malfunction

f

f

*1: MIL lights up. *2: MIL lights up or blinking.

2002 TOYOTA TACOMA (RM921U)

DI­170

DIAGNOSTICS ­ ENGINE (5VZ­FE)

MANUFACTURER DEFINED

DTC No. (See page) Detection Item Trouble Area S Open or short in A/F sensor circuit S A/F sensor S Air induction system S Fuel pressure S Injector S ECM S Open or short in A/F sensor circuit S A/F sensor S Air induction system S Fuel pressure S Injector S ECM S Open or short in heater circuit of A/F sensor S A/F sensor heater S ECM S Ignition system S Open or short in IGF or IGT circuit from igniter to ECM S Igniter S Ignition coil S ECM S Open or short in crankshaft position sensor circuit S Crankshaft position sensor S Crankshaft timing pulley S ECM S Short in stop light switch signal circuit S Stop light switch S ECM S Open in back up power source circuit S ECM S Open or short in No.2 vehicle speed sensor circuit S No.2 vehicle speed sensor S ECM S Short in park/neutral position switch circuit S Park/neutral position switch S ECM S Transfer L4 position switch S Transfer L4 position switch circuit S ECM S Transfer neutral position switch S Transfer neutral position switch circuit S ECM MIL* Memory

P1130 (DI­260)

A/F Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

f

f

P1133 (DI­264)

A/F Sensor Circuit Response Malfunction (Bank 1 Sensor 1)

f

f

P1135 (DI­268)

A/F Sensor Heater Circuit Malfunction (Bank1 Sensor 1)

f

f

P1300 (DI­270)

Igniter Circuit Malfunction

f

f

P1335 (DI­275)

Crankshaft Position Sensor Circuit Malfunction (During engine running)

­

f

P1520 (DI­276) P1600 (DI­279) P1700 (DI­336) P1780 (DI­281)

Stop Light Switch Signal Malfunction (Only for A/T)

f

f

ECM BATT Malfunction

f

f

Vehicle Speed Sensor No.2 Malfunction Park/Neutral Position Switch Malfunction (Only for A/T)

f

f

f

f

P1782 (DI­344)

Transfer L4 SW Circuit Malfunction (Only for 4WD)

f

f

P1783 (DI­348)

Transfer N SW Circuit Malfunction (Only for 4WD) f

f

f

*: ­ ... MIL does not light up.

... MIL lights up.

2002 TOYOTA TACOMA (RM921U)

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