Note. Before performing diagnostic procedure, follow testing procedure. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM.
For diagnostic procedures (Scheme 421) For component testing procedures see scheme 55
Home/Nissan/350Z/Nissan 350Z I (2002-2005)/Repair manual/Testing & Diagnostics/DTC P0128: THERMOSTAT FUNCTION
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures: Diagnosis
- Engine Controls - Basic Diagnostic Procedures: Other
- Engine Controls - Trouble Shooting - No Codes: Diagnosis
- Engine Controls - Trouble Shooting - No Codes: NVH
- Engine Controls - Trouble Shooting - No Codes: Other
- Engine Controls - System & Component Testing: Overview
- Engine Controls - System & Component Testing: Diagnosis
- Engine Controls - System & Component Testing: Component Locations
- Engine Controls - System & Component Testing: Other
- Engine Controls - Self-Diagnostics - 350Z: Overview
- Engine Controls - Self-Diagnostics - 350Z: Adjustments
- Engine Controls - Self-Diagnostics - 350Z: Diagnosis
- Engine Controls - Self-Diagnostics - 350Z: Component Locations
- Engine Controls - Self-Diagnostics - 350Z: Other
- DTC P0102, DTC P0103 & DTC P1102: MAF Sensor
- DTC P0117 & DTC P0118: ECT Sensor
- DTC P0221, DTC P0222, DTC P0223, DTC P1223 & DTC P1224: TP Sensor
- DTC P0226, DTC P0227, DTC P0228, DTC P1227 & DTC P1228: Accelerator Pedal Position Sensor
- DTC P1121: Electric Throttle Control Actuator (ECM Detects Throttle Valve Is Stuck Open)
- DTC P1122: Electric Throttle Control Function
- DTC P1126: Throttle Control Relay
- DTC P1129: Sensor Power Supply
- DTC P0011 OR DTC P0021
- DTC P0031, DTC P0032, DTC P0051 &/OR DTC P0052
- DTC P0037, DTC P0038, DTC P0057 &/OR DTC P0058
- DTC P0101: MASS AIRFLOW SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P0102: MASS AIRFLOW SENSOR CIRCUIT LOW INPUT OR DTC P0103: MASS AIRFLOW SENSOR CIRCUIT HIGH INPUT
- DTC P0112: INTAKE AIR TEMPERATURE SENSOR CIRCUIT LOW INPUT OR DTC P0113: INTAKE AIR TEMPERATURE SENSOR CIRCUIT HIGH INPUT
- DTC P0117: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW INPUT OR DTC P0118: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT HIGH INPUT
- DTC P0122: THROTTLE POSITION SENSOR CIRCUIT LOW INPUT OR DTC P0123: THROTTLE POSITION SENSOR CIRCUIT HIGH INPUT
- DTC P0125: INSUFFICIENT ENGINE COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0127: INTAKE AIR TEMPERATURE TOO HIGH
- DTC P0128: THERMOSTAT FUNCTION
- DTC P0132: HO2S1 CIRCUIT HIGH VOLTAGE - BANK 1 OR DTC P0152: HO2S1 CIRCUIT HIGH VOLTAGE - BANK 2
- DTC P0133: HO2S1 CIRCUIT SLOW RESPONSE - BANK 1 OR DTC P0153: HO2S1 CIRCUIT SLOW RESPONSE - BANK 2
- DTC P0134: HO2S1 CIRCUIT NO ACTIVITY DETECTED - BANK 1 OR DTC P0154: HO2S1 CIRCUIT NO ACTIVITY DETECTED - BANK 2
- DTC P0138: HO2S2 CIRCUIT HIGH VOLTAGE - BANK 1 OR DTC P0158: HO2S2 CIRCUIT HIGH VOLTAGE - BANK 2
- DTC P0139: HO2S2 CIRCUIT SLOW RESPONSE - BANK 1 OR DTC P0159: HO2S2 CIRCUIT SLOW RESPONSE - BANK 2
- DTC P0171: FUEL INJECTION SYSTEM TOO LEAN - BANK 1 &/OR DTC P0174: FUEL INJECTION SYSTEM TOO LEAN - BANK 2
- DTC P0172: FUEL INJECTION SYSTEM TOO RICH - BANK 1 &/OR DTC P0175: FUEL INJECTION SYSTEM TOO RICH - BANK 2
- DTC P0181: FUEL TANK TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0182: FUEL TANK TEMPERATURE SENSOR CIRCUIT LOW INPUT OR DTC P0183: FUEL TANK TEMPERATURE SENSOR CIRCUIT HIGH INPUT
- DTC P0222: THROTTLE POSITION (TP) SENSOR 1 CIRCUIT LOW INPUT OR DTC P0223: THROTTLE POSITION (TP) SENSOR 1 CIRCUIT HIGH INPUT
- DTC P0300, DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 &/OR DTC P0306
- DTC P0327: KNOCK SENSOR CIRCUIT LOW INPUT OR DTC P0328: KNOCK SENSOR CIRCUIT HIGH INPUT
- DTC P0335: CRANKSHAFT POSITION SENSOR (POS) CIRCUIT
- DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT - BANK 1 OR DTC P0345: CAMSHAFT POSITION SENSOR CIRCUIT - BANK 2
- DTC P0420: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 1 OR DTC P0430: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 2
- DTC P0441: EVAP CONTROL SYSTEM INCORRECT PURGE FLOW
- DTC P0442: EVAP CONTROL SYSTEM SMALL LEAK DETECTED (NEGATIVE PRESSURE)
- DTC P0444: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE CIRCUIT OPEN OR DTC P0445: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE CIRCUIT SHORTED
- DTC P0447: EVAP CANISTER VENT CONTROL VALVE CIRCUIT OPEN
- DTC P0452: EVAP CONTROL SYSTEM PRESSURE SENSOR LOW INPUT
- DTC P0453: EVAP CONTROL SYSTEM PRESSURE SENSOR HIGH INPUT
- DTC P0455: EVAP CONTROL SYSTEM GROSS LEAK
- DTC P0456: EVAP CONTROL SYSTEM VERY SMALL LEAK (NEGATIVE PRESSURE CHECK)
- DTC P0460: FUEL LEVEL SENSOR CIRCUIT NOISE
- DTC P0461: FUEL LEVEL SENSOR CIRCUIT RANGE/PERFORMANCE
- DTC P0462: FUEL LEVEL SENSOR CIRCUIT LOW INPUT
- DTC P0500: VEHICLE SPEED SENSOR
- DTC P0506: IDLE SPEED CONTROL SYSTEM RPM LOWER THAN EXPECTED
- DTC P0507: IDLE SPEED CONTROL SYSTEM RPM HIGHER THAN EXPECTED
- DTC P0550: POWER STEERING PRESSURE SENSOR CIRCUIT
- DTC P0605: ECM
- DTC P1065: ECM POWER SUPPLY CIRCUIT (BACK-UP)
- DTC P1111: INTAKE VALVE TIMING CONTROL SOLENOID VALVE CIRCUIT - BANK 1 OR DTC P1136: INTAKE VALVE TIMING CONTROL SOLENOID VALVE CIRCUIT - BANK 2
- DTC P1121: ELECTRIC THROTTLE CONTROL ACTUATOR
- DTC P1122: ELECTRIC THROTTLE CONTROL PERFORMANCE PROBLEM
- DTC P1124: THROTTLE CONTROL MOTOR RELAY CIRCUIT SHORTED OR DTC P1126: THROTTLE CONTROL MOTOR RELAY CIRCUIT OPEN
- DTC P1128: THROTTLE CONTROL MOTOR CIRCUIT SHORTED
- DTC P1143: HO2S1 LEAN SHIFT MONITORING - BANK 1 OR DTC P1163: HO2S1 LEAN SHIFT MONITORING - BANK 2
- DTC P1144: HO2S1 RICH SHIFT MONITORING - BANK 1 OR DTC P1164: HO2S1 RICH SHIFT MONITORING - BANK 2
- DTC P1146: HO2S2 MINIMUM VOLTAGE MONITORING - BANK 1 OR DTC P1166: HO2S2 MINIMUM VOLTAGE MONITORING - BANK 2
- DTC P1147: HO2S2 MAXIMUM VOLTAGE MONITORING - BANK 1 OR DTC P1167: HO2S2 MAXIMUM VOLTAGE MONITORING - BANK 2
- DTC P1148: CLOSED LOOP CONTROL - BANK 1 OR DTC P1168: CLOSED LOOP CONTROL - BANK 2
- DTC P1211: TCS CONTROL UNIT
- DTC P1212: TCS COMMUNICATION LINE
- DTC P1217: ENGINE OVER TEMPERATURE
- DTC P1225: CLOSED THROTTLE POSITION LEARNING PERFORMANCE PROBLEM
- DTC P1226: CLOSED THROTTLE POSITION LEARNING PERFORMANCE PROBLEM
- DTC P1229: SENSOR POWER SUPPLY CIRCUIT SHORTED
- DTC P1444: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
- DTC P1446: EVAP CANISTER VENT CONTROL VALVE CLOSED
- DTC P1564: ASCD STEERING SWITCH
- DTC P1572: ASCD BRAKE SWITCH
- DTC P1574: ASCD VEHICLE SPEED SENSOR
- DTC P1706: PARK/NEUTRAL POSITION SWITCH
- DTC P1805: BRAKE SWITCH
- DTC P2122: ACCELERATOR PEDAL POSITION SENSOR 1 CIRCUIT LOW INPUT &/OR DTC P2123: ACCELERATOR PEDAL POSITION SENSOR 1 CIRCUIT HIGH INPUT
- DTC P2127: ACCELERATOR PEDAL POSITION SENSOR 2 CIRCUIT LOW INPUT OR DTC P2128: ACCELERATOR PEDAL POSITION SENSOR 2 CIRCUIT HIGH INPUT
- DTC P2135: THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P2138: ACCELERATOR PEDAL POSITION SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC U1000 OR DTC U1001: CAN COMMUNICATION LINE
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Airbag
- Antenna Systems
- Anti-Lock/traction Control
- Application
- Automatic HVAC System
- Automatic Trans
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Computer Relearn
- Cooling Fan
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- Driveshaft & Universal Joints
- DTC Index
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Entertainment Systems
- Exterior Body Panels
- Exterior Lights
- Exterior/interior Trim
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Headlights
- Heated Glass/defoggers
- Hoist/jack
- Identification
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- Manual Trans
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- Mechanical - Hydraulic
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- Mode 6
- Oem General Information
- Passive Restraints
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- Removal & Installation
- Restraints
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- Specifications
- Starter
- Steering
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- Testing & Diagnostics
- Theory & Operation
- Traction Control Disable
- Transmission
- Warning System
- Wheel Alignment
- Windows
- Wiper/washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
