Manual sections
Wiring diagrams- Abbreviations
- Accessory Drive Belts
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Repair manual
Testing & Diagnostics Toyota 4Runner IV
Step-by-step instructions on "Testing & Diagnostics" for Toyota 4Runner IV (2002–2005). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
5subsections
80articles
837illustrations
Engine Controls - Basic Diagnostic Procedures - V6 & V8
3 articlesEngine Control System Self Diagnostics - 2UZ-FE
34 articles- Engine Control System Self Diagnostics - 2UZ-FE: Overview
- Engine Control System Self Diagnostics - 2UZ-FE: Diagnosis 40
- Engine Control System Self Diagnostics - 2UZ-FE: Component Locations 1
- Engine Control System Self Diagnostics - 2UZ-FE: Other 3
- DTC P0031, DTC P0032, DTC P0037, DTC P0038, DTC P0051, DTC P0052, DTC P0057 & DTC P0058
- DTC P0100, DTC P0102 &/OR DTC P0103 1
- DTC P0110, DTC P0112 &/OR DTC P0113 1
- DTC P0115, DTC P0117 &/OR DTC P0118
- DTC P0116: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM & DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0120, DTC P0122, DTC P0123, DTC P0220, DTC P0222, DTC P0223 &/OR DTC P2135
- DTC P0128: THERMOSTAT MALFUNCTION
- DTC P0130, DTC P0150, DTC P2195, DTC P2196, DTC P2197 &/OR DTC P2198
- DTC P0133: OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1) &/OR P0153: OXYGEN SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
- DTC P0134: OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) &/OR DTC P0154: OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
- DTC P0171, DTC P0172, DTC P0174 &/OR DTC P0174
- DTC P0300, DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305, DTC P0306, DTC P0307 &/OR DTC P0308
- DTC P0325: KNOCK SENSOR NO. 1 CIRCUIT (BANK 1 OR SINGLE SENSOR) &/OR DTC P0330: KNOCK SENSOR NO. 2 CIRCUIT (BANK 2) 3
- DTC P0335: CRANKSHAFT POSITION SENSOR A CIRCUIT OR DTC P0339: CRANKSHAFT POSITION SENSOR A CIRCUIT INTERMITTENT
- DTC P0340: CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 1 OR SINGLE SENSOR) &/OR DTC P0341: CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE PROBLEM (BANK 1 OR SINGLE SENSOR)
- DTC P0351, DTC P0352, DTC P0353, DTC P0354, DTC P0355, DTC P0356, DTC P0357 &/OR DTC P0358
- DTC P0441, DTC P0442, DTC P0446 OR DTC P0456 3
- DTC P0451, DTC P0452 &/OR DTC P0453
- DTC P0500: VEHICLE SPEED SENSOR "A" CIRCUIT MALFUNCTION & P0503: VEHICLE SPEED SENSOR "A" CIRCUIT INTERMITTENT/ERRATIC/HIGH
- DTC P0504: BRAKE SWITCH "A"/"B" CORRELATION
- DTC P0560: SYSTEM VOLTAGE
- DTC P0571: STOPLIGHT SWITCH SIGNAL CIRCUIT
- DTC P0604, DTC P0606, DTC P0607 &/OR DTC P0657
- DTC P0617: STARTER RELAY CIRCUIT HIGH INPUT
- DTC P2102: THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW INPUT OR DTC P2103: THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH INPUT
- DTC P2111: THROTTLE ACTUATOR CONTROL SYSTEM STUCK OPEN & DTC P2112: THROTTLE ACTUATOR CONTROL SYSTEM STUCK CLOSED
- DTC P2118: THROTTLE ACTUATOR CONTROL MOTOR CURRENT RANGE/PERFORMANCE
- DTC P2119: THROTTLE ACTUATOR CONTROL THROTTLE BODY RANGE/PERFORMANCE
- DTC P2120, DTC P2122, DTC P2123, DTC P2125, DTC P2127, DTC P2128 &/OR DTC P2138
- DTC P2121: THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT RANGE/PERFORMANCE PROBLEM
Engine Controls - Trouble Shooting - No Codes
3 articlesEngine Controls - System & Component Testing - V6 & V8
4 articlesEngine Control System Self Diagnostics - 1GR-FE
36 articles- Engine Control System Self Diagnostics - 1GR-FE: Overview
- Engine Control System Self Diagnostics - 1GR-FE: Diagnosis 137
- Engine Control System Self Diagnostics - 1GR-FE: Component Locations 1
- Engine Control System Self Diagnostics - 1GR-FE: Other 9
- DTC P0010: CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1) & DTC P0020: CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 2)
- DTC P0011, DTC P0012, DTC P0021 OR DTC P0022
- DTC P0031, DTC P0032, DTC P0051 & DTC P0052
- DTC P0037, DTC P0038, DTC P0057 & DTC P0058
- DTC P0100, DTC P0102 & DTC P0103
- DTC P0110, DTC P0112 & DTC P0113
- DTC P0115, DTC P0117 & DTC P0118
- DTC P0116: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE OR DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0120, DTC P0122, DTC P0123, DTC P0220, DTC P0222, DTC P0223 & DTC P2135
- DTC P0128: COOLANT THERMOSTAT MALFUNCTION
- DTC P0136: HEATED OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2) & DTC P0156: HEATED OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2)
- DTC P0171, DTC P0172, DTC P0174 & DTC P0175
- DTC P0230: FUEL PUMP PRIMARY CIRCUIT 1
- DTC P0300, DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 &/OR DTC P0306
- DTC P0325, DTC P0327, DTC P0328, DTC P0330, DTC P0332 & DTC P0333
- DTC P0335: CRANKSHAFT POSITION SENSOR "A" CIRCUIT OR DTC P0339: CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT
- DTC P0340, DTC P0341, DTC P0345 OR DTC P0346
- DTC P0351, DTC P0352, DTC P0353, DTC P0354, DTC P0355 OR DTC P0356
- DTC P0441, DTC P0442, DTC P0446 & DTC P0456 3
- DTC P0451, DTC P0452 & DTC P0453
- DTC P0500: VEHICLE SPEED SENSOR "A" CIRCUIT OR DTC P0503: VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH
- DTC P0560: SYSTEM VOLTAGE
- DTC P0604, DTC P0606, DTC P0607 & DTC P0657
- DTC P0617: STARTER RELAY CIRCUIT HIGH
- DTC P2102: THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW OR DTC P2103: THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
- DTC P2111: THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN OR P2112: THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED
- DTC P2118: THROTTLE ACTUATOR CONTROL MOTOR CURRENT RANGE/PERFORMANCE
- DTC P2119: THROTTLE ACTUATOR CONTROL THROTTLE BODY RANGE/PERFORMANCE
- DTC P2120, DTC P2122, DTC P2123, DTC P2125, DTC P2127, DTC P2128 & DTC P2138
- DTC P2121: THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P2195, DTC P2196, DTC P2197 & DTC P2198
- DTC P2237, DTC P2238, DTC P2239, DTC P2240, DTC P2241, DTC P2242, DTC P2251, DTC P2252, DTC P2253, DTC P2254, DTC P2255 OR DTC P2256