Note. To locate components, see COMPONENT LOCATIONS . For circuit reference, see WIRING DIAGRAMS . For connector terminal identification, see CONNECTOR IDENTIFICATION .
Home/Pontiac/Aztek/Pontiac Aztek I (2001-2005)/Repair manual/Testing & Diagnostics/DTC P1374: 3X REFERENCE CIRCUIT
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures: Overview
- 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: Wiring
- Engine Controls - Trouble Shooting - No Codes: NVH
- Engine Controls - Trouble Shooting - No Codes: Other
- Engine Controls - System & Component Testing: Specifications
- Engine Controls - System & Component Testing: Overview
- Engine Controls - System & Component Testing: Diagnosis
- Engine Controls - System & Component Testing: Wiring
- Engine Controls - System & Component Testing: Component Locations
- Engine Controls - System & Component Testing: Other
- Engine Controls Self-Diagnostics: Overview
- Engine Controls Self-Diagnostics: Diagnosis
- Engine Controls Self-Diagnostics: Component Locations
- Engine Controls Self-Diagnostics: Other
- DTC P0030: HO2S HEATER CONTROL CIRCUIT - SENSOR 1
- DTC P0101: MAF SENSOR PERFORMANCE
- DTC P0102: MAF SENSOR CIRCUIT - LOW FREQUENCY
- DTC P0103: MAF SENSOR CIRCUIT - HIGH FREQUENCY
- DTC P0107: MAP SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0108: MAP SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0112: IAT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0113: IAT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0116: ECT SENSOR PERFORMANCE
- DTC P0117: ECT SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0118: ECT SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0121: TP SENSOR PERFORMANCE
- DTC P0122: TP SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0123: TP SENSOR CIRCUIT - HIGH VOLTAGE
- DTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROL
- DTC P0128: COOLANT THERMOSTAT
- DTC P0130: HO2S CIRCUIT - SENSOR 1
- DTC P0131: HO2S CIRCUIT - LOW VOLTAGE (BANK 1; SENSOR 1)
- DTC P0132: HO2S CIRCUIT - HIGH VOLTAGE (BANK 1; SENSOR 1)
- DTC P0133: HO2S CIRCUIT - SLOW RESPONSE (BANK 1; SENSOR 1)
- DTC P0134: HO2S CIRCUIT - INSUFFICIENT ACTIVITY (BANK 1; SENSOR 1)
- DTC P0135: HO2S HEATER CIRCUIT (BANK 1; SENSOR 1)
- DTC P0137: HO2S CIRCUIT - LOW VOLTAGE (BANK 1; SENSOR 2)
- DTC P0138: HO2S CIRCUIT - HIGH VOLTAGE (BANK 1; SENSOR 2)
- DTC P0140: HO2S CIRCUIT - INSUFFICIENT ACTIVITY (BANK 1; SENSOR 2)
- DTC P0141: HO2S HEATER CIRCUIT (BANK 1; SENSOR 2)
- DTC P0171: FUEL TRIM SYSTEM LEAN
- DTC P0172: FUEL TRIM SYSTEM RICH
- DTC P0200-P0206: FUEL INJECTOR CONTROL CIRCUITS
- DTC P0230: FUEL PUMP CONTROL RELAY CIRCUIT
- DTC P0300: ENGINE MISFIRE DETECTED
- DTC P0325: KNOCK SENSOR MODULE CIRCUIT
- DTC P0327: KNOCK SENSOR CIRCUIT - LOW VOLTAGE
- DTC P0336: CRANKSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0341: CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
- DTC P0401: EGR SYSTEM - INSUFFICIENT FLOW
- DTC P0403: EGR VALVE CONTROL CIRCUIT
- DTC P0404: EGR VALVE OPEN PINTLE POSITION
- DTC P0405: EGR PINTLE POSITION CIRCUIT - LOW VOLTAGE
- DTC P0420: TWC SYSTEM - LOW EFFICIENCY
- DTC P0440: EVAP SYSTEM - LARGE LEAK
- DTC P0442: EVAP SYSTEM - SMALL LEAK
- DTC P0443: EVAP PURGE SOLENOID CONTROL CIRCUIT
- DTC P0446: EVAP VENT VALVE PERFORMANCE
- DTC P0449: EVAP VENT VALVE PERFORMANCE
- DTC P0452: FUEL TANK PRESSURE SENSOR - LOW VOLTAGE
- DTC P0453: FUEL TANK PRESSURE SENSOR - HIGH VOLTAGE
- DTC P0480 OR P0481: COOLING FAN RELAY CONTROL CIRCUIT
- DTC P0502: VEHICLE SPEED SENSOR LOW OUTPUT
- DTC P0503: VEHICLE SPEED SENSOR ERRATIC
- DTC P0506: IDLE CONTROL SYSTEM - LOW RPM
- DTC P0507: IDLE CONTROL SYSTEM - HIGH RPM
- DTC P0560: SYSTEM VOLTAGE OUT OF RANGE
- DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 OR P2610: PCM MEMORY
- DTC P0650: MIL CONTROL CIRCUIT
- DTC P1106: MAP SYSTEM PERFORMANCE
- DTC P1107: MAP SENSOR CIRCUIT LOW VOLTAGE
- DTC P1111: IAT SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1112: IAT SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1114: ECT SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1115: ECT SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1121: TP SENSOR CIRCUIT - INTERMITTENT HIGH VOLTAGE
- DTC P1122: TP SENSOR CIRCUIT - INTERMITTENT LOW VOLTAGE
- DTC P1133: HO2S INSUFFICIENT SWITCHING (BANK 1; SENSOR 1)
- DTC P1134: HO2S TRANSITION TIME RATIO - SENSOR 1
- DTC P1336: CRANKSHAFT SYSTEM VARIATION NOT LEARNED
- DTC P1351: IGNITION CONTROL CIRCUIT - HIGH VOLTAGE
- DTC P1352: IGNITION BY-PASS CIRCUIT - HIGH VOLTAGE
- DTC P1361: IGNITION CONTROL CIRCUIT - LOW VOLTAGE
- DTC P1362: IGNITION BY-PASS CIRCUIT - LOW VOLTAGE
- DTC P1374: 3X REFERENCE CIRCUIT
- DTC P1380: EBCM DTC DETECTED - ROUGH ROAD DATA UNSTABLE
- DTC P1381: MISFIRE DETECTED - NO EBCM/PCM SERIAL DATA
- DTC P1404: EGR SYSTEM (VALVE NO. 2)
- DTC P1441: EVAP SYSTEM FLOW DURING NON-PURGE
- DTC P1635: 5-VOLT REFERENCE 1 CIRCUIT
- DTC P1639: 5-VOLT REFERENCE 2 CIRCUIT
- DTC P1640: EXCESSIVE VOLTAGE DETECTED ON OUTPUT DRIVER NO. 1 CIRCUIT
- DTC P1650: EXCESSIVE VOLTAGE DETECTED ON OUTPUT DRIVER NO. 2 CIRCUIT
- DTC P1660: EXCESSIVE VOLTAGE DETECTED ON OUTPUT DRIVER NO. 3 CIRCUIT
- DTC P1670: EXCESSIVE VOLTAGE DETECTED ON OUTPUT DRIVER NO. 4 CIRCUIT
- Abbreviations
- Accessories Control Systems
- Accessory Drive Belts
- Adjustments
- Airbag
- Anti-Lock/traction Control
- Application
- Automatic HVAC System
- Automatic Trans
- Axle Shafts
- Basic Trouble Shooting
- Body Electrical
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Collision/avoidance
- 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
- Electrical Component Locations
- Electronic Suspension
- Emission Applications
- Engine
- Engine Performance
- Entertainment Systems
- Exhaust
- Exterior Body Panels
- Exterior Lights
- Exterior/interior Trim
- Frames, Subframes & Crossmembers
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- Heated Glass/defoggers
- Hoist/jack
- Horns
- Identification
- Ignition Switch/steering Lock
- Manual & Power Steering
- Manual HVAC System
- Mechanical
- Mechanical - Hydraulic
- Memory Modules
- Metric Conversions
- Mode 6
- Oem General Information
- Removal & Installation
- Reset Procedures
- Restraints
- Restraints Control Systems
- Rpo Codes
- Seats
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Traction Control Disable
- Transfer Case
- Transmission
- Warning System
- Wheel & Tire System
- Wheel Alignment
- Wiper/washer Systems