Note. Before performing diagnostic procedure, follow testing procedure. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM.
Home/Nissan/Altima/Nissan Altima L31 (2001-2004)/Repair manual/Testing & Diagnostics/DTC P1065: ECM POWER SUPPLY (BACK-UP)
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures - 4 Cyl & V6: Diagnosis
- Engine Controls - Basic Diagnostic Procedures - 4 Cyl & V6: Other
- Engine Controls - Self-Diagnostics - Altima: Overview
- Engine Controls - Self-Diagnostics - Altima: Adjustments
- Engine Controls - Self-Diagnostics - Altima: Component Locations
- Engine Controls - Self-Diagnostics - Altima: 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: IVT CONTROL
- DTC P0031, DTC P0032, DTC P0051 OR DTC P0052: HO2S1 HEATER
- DTC P0037, DTC P0038, DTC P0057 OR DTC P0058: HO2S2 HEATER
- DTC P0101: MASS AIRFLOW SENSOR
- DTC P0102 OR DTC P0103: MASS AIRFLOW SENSOR
- DTC P0102 Confirmation Test
- DTC P0103 Confirmation Test
- DTC P0107 OR DTC P0108: ABSOLUTE PRESSURE SENSOR (3.5L)
- DTC P0112 OR DTC P0113: INTAKE AIR TEMPERATURE SENSOR
- DTC P0117 OR DTC P0118: ENGINE COOLANT TEMPERATURE SENSOR
- DTC P0125: ENGINE COOLANT TEMPERATURE SENSOR
- DTC P0127: INTAKE AIR TEMPERATURE SENSOR
- DTC P0128: THERMOSTAT FUNCTION
- DTC P0132 OR DTC P0152: HO2S1
- DTC P0133 OR DTC P0153: HO2S1
- DTC P0134 OR DTC P0154: HO2S1
- DTC P0138 OR DTC P0158: HO2S2
- DTC P0139 OR DTC P0159: HO2S2
- DTC P0171, DTC P0172, DTC P0174 OR DTC P0175: FUEL INJECTION SYSTEM FUNCTION
- DTC P0181, DTC P0182 OR DTC P0183: FUEL TANK TEMPERATURE SENSOR
- DTC P0217: COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION (2.5L)
- DTC P0221, DTC P0222 OR DTC P0223: TP SENSOR
- DTC P0226, DTC P0227 OR DTC P0228: ACCELERATOR PEDAL POSITION SENSOR
- DTC P0300-DTC P0306: CYLINDER OR MULTIPLE CYLINDER MISFIRE
- DTC P0327 OR DTC P0328: KNOCK SENSOR
- DTC P0335: CRANKSHAFT POSITION SENSOR (POS)
- DTC P0340 OR DTC P0345: CAMSHAFT POSITION SENSOR (PHASE)
- DTC P0420: 3-WAY CATALYST FUNCTION
- DTC P0441: EVAP CONTROL SYSTEM
- DTC P0442: EVAP CONTROL SYSTEM
- DTC P0444 OR DTC P0445: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
- DTC P0447: EVAP CANISTER VENT CONTROL VALVE
- DTC P0452: EVAP CONTROL SYSTEM PRESSURE SENSOR
- DTC P0453: EVAP CONTROL SYSTEM PRESSURE SENSOR
- DTC P0455: EVAP CONTROL SYSTEM (2.5L)
- DTC P0456: EVAP CONTROL SYSTEM
- DTC P0460: FUEL LEVEL SENSOR
- DTC P0461: FUEL LEVEL SENSOR
- DTC P0462 OR DTC P0463: FUEL LEVEL SENSOR
- DTC P0500: VEHICLE SPEED SENSOR
- DTC P0506 OR DTC P0507: IDLE SPEED CONTROL SYSTEM
- DTC P0550: POWER STEERING PRESSURE SENSOR (3.5L)
- DTC P0605: ECM
- DTC P0650: MIL
- DTC P1065: ECM POWER SUPPLY (BACK-UP)
- DTC P1102: MASS AIRFLOW SENSOR
- DTC P1111: INTAKE VALVE TIMING CONTROL SOLENOID VALVE (2.5L)
- DTC P1121: ELECTRIC THROTTLE CONTROL ACTUATOR
- DTC P1122: ELECTRIC THROTTLE CONTROL FUNCTION
- DTC P1124 OR DTC P1126: THROTTLE CONTROL MOTOR RELAY
- DTC P1128: THROTTLE CONTROL MOTOR
- DTC P1143 OR DTC P1163: HO2S1
- DTC P1144 OR DTC P1164: HO2S1
- DTC P1146 OR DTC P1166: HO2S2
- DTC P1147 OR DTC P1167: HO2S2
- DTC P1148 OR DTC P1168: CLOSED LOOP CONTROL
- DTC P1211: ABS/TCS CONTROL UNIT (3.5L)
- DTC P1212: ABS/TCS COMMUNICATION LINE (3.5L)
- DTC P1217: ENGINE OVER TEMPERATURE
- DTC P1223 OR DTC P1224: TP SENSOR
- DTC P1225: TP SENSOR
- DTC P1226: TP SENSOR
- DTC P1227 OR DTC P1228: ACCELERATOR PEDAL POSITION SENSOR
- DTC P1229: SENSOR POWER SUPPLY
- DTC P1442: EVAP CONTROL SYSTEM (2.5L)
- DTC P1444: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
- DTC P1446: EVAP CANISTER VENT CONTROL VALVE
- DTC P1448: EVAP CANISTER VENT CONTROL VALVE
- DTC P1456: EVAP CONTROL SYSTEM (2.5L)
- DTC P1464: FUEL LEVEL SENSOR CIRCUIT (GROUND SIGNAL)
- DTC P1490: VACUUM CUT VALVE BY-PASS VALVE
- DTC P1491: VACUUM CUT VALVE BY-PASS VALVE
- DTC P1564: ASCD STEERING SWITCH
- DTC P1572: ASCD BRAKE SWITCH
- DTC P1574: ASCD VEHICLE SPEED SENSOR
- DTC P1706: PARK/NEUTRAL POSITION SWITCH
- DTC P1800: VIAS CONTROL SOLENOID VALVE (3.5L)
- DTC P1805: BRAKE SWITCH
- DTC U1000 OR DTC U1001: CAN COMMUNICATION LINE
- Engine Controls - Trouble Shooting - No Codes - 4 Cyl & V6: Diagnosis
- Engine Controls - Trouble Shooting - No Codes - 4 Cyl & V6: Other
- Engine Controls - System & Component Testing - 4 Cyl & V6: Diagnosis
- Engine Controls - System & Component Testing - 4 Cyl & V6: Component Locations
- Engine Controls - System & Component Testing - 4 Cyl & V6: Other
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Airbag
- Anti-Lock Brakes System & Traction Control System
- Anti-Lock/traction Control
- Application
- Automatic Air Conditioner
- Automatic Air Conditioner: Diagnosis
- Automatic Air Conditioner: Overview
- Automatic HVAC System
- Automatic Trans
- Automatic Transaxle
- Automatic Transaxle: Diagnosis
- Automatic Transaxle: Wiring
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Body, Cab Control Systems
- Brakes
- Cabin Air Filter
- CAN System
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Computer Relearn
- Cooling Fan
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Controls - Self-Diagnostics - Altima: Diagnosis
- Engine Cooling System
- Engine Mechanical - 2.5L
- Engine Mechanical - 2.5L: Removal & Installation
- Engine Mechanical - 3.5L
- Engine Performance
- Exhaust
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Information
- Headlights
- Heated Glass/defoggers
- Hoist/jack
- Identification
- Lubrication System
- Manual & Power Steering
- Manual Air Conditioner
- Manual Air Conditioner: Diagnosis
- Manual HVAC System
- Manual Trans
- Manual Transmission
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Mode 6
- Oem General Information
- Pin Voltage Charts
- Removal & Installation
- Restraints
- Seats
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Steering Column Switches
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Traction Control Disable
- Transmission
- Wheel & Tire System
- Wheel Alignment
- Windows
- Wiper/washer Systems
- Wiring Diagrams - Engine Performance