Schematic
For detailed ground distribution, refer to " GROUND DISTRIBUTION ".
Power Supply Routing Schematic Diagram (1 Of 2). Scheme 18
Power Supply Routing Schematic Diagram (2 Of 2). Scheme 19
Wiring Diagram - PG-POWER-01. Scheme 20
Wiring Diagram - PG-POWER-02. Scheme 21
Wiring Diagram - PG-POWER-03. Scheme 22
Wiring Diagram - PG-POWER-04. Scheme 23
Wiring Diagram - PG-POWER-05. Scheme 24
Wiring Diagram - PG-POWER-06. Scheme 25
Wiring Diagram - PG-POWER-07. Scheme 26
Wiring Diagram - PG-POWER-08. Scheme 27
Wiring Diagram - PG-POWER-09. Scheme 28
Wiring Diagram - PG-POWER-10. Scheme 29
Wiring Diagram - PG-POWER-11. Scheme 30
Scheme 31
- If fuse is blown, be sure to eliminate cause of incident before installing new fuse.
- Use fuse of specified rating. Never use fuse of more than specified rating.
- Do not partially install fuse; always insert it into fuse holder properly.
- Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not used for a long period of time. (Scheme 31): Checking Fuse For Blown
HOW TO READ HARNESS LAYOUT
The following Harness Layouts use a map style grid to help locate connectors on the drawings
Scheme 32
- Main Harness and Console Sub-harness
- Engine Room Harness (RH View) Engine Compartment, Generator Sub-harness and Trailer Tow Harness
- Engine Room Harness (Passenger Compartment)
- Engine Room Harness (LH View) Engine Compartment
- Engine Control Harness (QR25DE Models) and Injector Sub harness (Scheme 32): Harness Layout (Example)
- Engine Control Harness (VQ40DE Models), Injector Sub-harness, Ignition Coil Sub-harness and Knock Sensor Sub-harness
- Chassis Harness, Differential Lock Sub-harness, Trailer Sub-harness and Tail Lamp Sub-harness
- Body Harness (King Cab Models)
- Body Harness (Crew Cab Models)
- Body No. 2 Harness (King Cab Models)
- Body No. 2 Harness (Crew Cab Models)
- Room Lamp Harness
Wiring Diagram Codes (Cell Codes)
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring diagram.
| Code | Section | Wiring Diagram Name |
|---|---|---|
| A/C, m | MTC | Manual Air Conditioner |
| A/F | EC | Air Fuel Ratio (A/F) Sensor |
| A/FH | EC | Air Fuel Ratio (A/F) Sensor Heater |
| ABLS | BRC | Anti-Lock Brake System Limited Slip |
| ABS | BRC | Anti-Lock Brake System |
| AF1B1 | EC | Air Fuel Ratio (A/F) Sensor 1 Bank 1 |
| AF1B2 | EC | Air Fuel Ratio (A/F) Sensor 1 Bank 2 |
| AF1HB1 | EC | Air Fuel Ratio (A/F) Sensor 1 Heater Bank 1 |
| AF1HB2 | EC | Air Fuel Ratio (A/F) Sensor 1 Heater Bank 2 |
| APPS1 | EC | Accelerator Pedal Position Sensor |
| APPS2 | EC | Accelerator Pedal Position Sensor |
| APPS3 | EC | Accelerator Pedal Position Sensor |
| ASC/BS | EC | ASCD Brake Switch |
| ASC/SW | EC | ASCD Steering Switch |
| ASCBOF | EC | ASCD Brake Switch |
| ASCIND | EC | ASCD Indicator |
| AT/IND | DI | A/T Indicator Lamp |
| AUDIO | AV | Audio |
| AUTO/L | LT | Auto Light Control |
| B/COMP | DI | Combination Meter Board Computer |
| BACK/L | LT | Back-up Lamp |
| BRK/SW | EC | Brake Switch |
| CAN | AT | CAN Communication Line |
| CAN | EC | CAN Communication Line |
| CAN | LAN | CAN System |
| CHARGE | SC | Charging System |
| CHIME | DI | Warning Chime |
| COOL/F | EC | Cooling Fan Control |
| COMBSW | LT | Combination Switch |
| COMPAS | DI | Compass |
| CUR/SE | EC | Battery Current Sensor |
| D/LOCK | BL | Power Door Lock |
| DEF | GW | Rear Window Defogger |
| DTRL | LT | Headlamp-With Daytime Light System |
| DIFLOC | RFD | Electronic Locking Differential |
| ECM/PW | EC | ECM Power Supply for Back-Up |
| ECTS | EC | Engine Coolant Temperature Sensor |
| ETC1 | EC | Electric Throttle Control Function |
| ETC2 | EC | Throttle Control Motor Relay |
| ETC3 | EC | Throttle Control Motor |
| F/FOG | LT | Front Fog Lamp |
| F/PUMP | EC | Fuel Pump |
| FTS | AT | A/T Fluid Temperature Sensor |
| FTTS | EC | Fuel Tank Temperature Sensor |
| FUEL | EC | Fuel Injection System Function |
| FUELB1 | EC | Fuel Injection System Bank 1 |
| FUELB2 | EC | Fuel Injection System Bank 2 |
| HEATER | MTC | Heater System |
| H/LAMP | LT | Headlamp |
| H/MIRR | GW | Door Mirror With Heated Mirror |
| HO2S2H | EC | Heated Oxygen Sensor 2 Heater |
| HO2S2 | EC | Heated Oxygen Sensor 2 |
| HORN | WW | Horn |
| HSEAT | SE | Heated Seat |
| I/MIRR | GW | Inside Mirror (Auto Anti-Dazzling Mirror) |
| IATS | EC | Intake Air Temperature Sensor |
| IGNSYS | EC | Ignition System |
| ILL | LT | Illumination |
| INJECT | EC | Injectors |
| INT/L | LT | Room/Map, Vanity, Cargo, and Personal Lamps |
| IVC | EC | Intake Valve Timing Control Solenoid Valve |
| IVCB1 | EC | Intake Valve Timing Control Solenoid Valve Bank 1 |
| IVCB2 | EC | Intake Valve Timing Control Solenoid Valve Bank 2 |
| KEYLES | BL | Remote Keyless Entry System |
| KS | EC | Knock Sensor |
| MAFS | EC | Mass Air Flow Sensor |
| MAIN | AT | Main Power Supply and Ground Circuit |
| MAIN | EC | Main Power Supply and Ground Circuit |
| METER | DI | Speedometer, Tachometer, Temp. and Fuel Gauges |
| MIL/DL | EC | Malfunction Indicator Lamp |
| MIRROR | GW | Door Mirror |
| NATS | BL | Nissan Anti-Theft System |
| NONDTC | AT | Non-Detective Items |
| O2H2B1 | EC | Rear Heated Oxygen Sensor 2 Heater Bank 1 |
| O2H2B2 | EC | Rear Heated Oxygen Sensor 2 Heater Bank 2 |
| O2S2B1 | EC | Heated Oxygen Sensor 2 Bank 1 |
| O2S2B2 | EC | Heated Oxygen Sensor 2 Bank 2 |
| P/SCKT | WW | Power Socket |
| PGC/V | EC | EVAP Canister Purge Volume Control Solenoid Valve |
| PHASE | EC | Camshaft Position Sensor (PHASE) |
| PHSB1 | EC | Camshaft Position Sensor (PHASE) (Bank 1) |
| PHSB2 | EC | Camshaft Position Sensor (PHASE) (Bank 1) |
| PNP/SW | AT | Park/Neutral Position Switch |
| PNP/SW | EC | Park/Neutral Position Switch |
| POS | EC | Crankshaft Position Sensor (POS) |
| POWER | PG | Power Supply Routing |
| PRE/SE | EC | EVAP Control System Pressure Sensor |
| PS/SEN | EC | Power Steering Pressure Sensor |
| RP/SEN | EC | Refrigerant Pressure Sensor |
| SEAT | SE | Power Seat |
| SEN/PW | EC | Sensor Power Supply |
| SHIFT | AT | A/T Shift Lock System |
| SROOF | RF | Sunroof |
| SRS | SRS | Supplemental Restraint System |
| STSIG | AT | Start Signal Circuit |
| START | SC | Starting System |
| STOP/L | LT | Stop Lamp |
| T/TOW | LT | Trailer Tow |
| T/WARN | WT | Low Tire Pressure Warning System |
| TAIL/L | LT | Parking, License and Tail Lamps |
| T/F | TF | Transfer Case |
| TPS1 | EC | Throttle Position Sensor |
| TPS2 | EC | Throttle Position Sensor |
| TPS3 | EC | Throttle Position Sensor |
| TRNSCV | BL | HOMELINK® Universal Transceiver |
| TURN | LT | Turn Signal and Hazard Warning Lamps |
| VDC | BRC | Vehicle Dynamic Control System |
| VEHSEC | BL | Vehicle security (theft warning) system |
| VENT/V | EC | EVAP Canister Vent Control Valve |
| VIAS | EC | Variable Air Induction Control System |
| VIAS/V | EC | Variable Air Induction Control System Valve |
| VSSA/T | AT | Vehicle Speed Sensor A/T (Revolution Sensor) |
| WARN | DI | Warning Lamps |
| WINDOW | GW | Power Window |
| WIPER | WW | Front Wiper and Washer |
WIRING DIAGRAM CODES REFERENCE CHART
Identifying Engine Compartment Electrical Units Location. Scheme 33
Identifying Passenger Compartment Electrical Units Location (1 Of 2). Scheme 34
Identifying Passenger Compartment Electrical Units Location (2 Of 2). Scheme 35
HARNESS CONNECTOR (TAB-LOCKING TYPE)
- The tab-locking type connectors help prevent accidental looseness or disconnection.
- The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the illustration below.
Refer to the next page for description of the slide-locking type connector.
| CAUTION | Do not pull the harness or wires when disconnecting the connector. |
[Example]
Harness Connector Disconnecting Procedure (Tab-Locking Type). Scheme 36
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
- A new style slide-locking type connector is used on certain systems and components, especially those related to OBD.
- The slide-locking type connectors help prevent incomplete locking and accidental looseness or disconnection.
- The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustration below.
| CAUTION | Do not pull the harness or wires when disconnecting the connector. Be careful not to damage the connector support bracket when disconnecting the connector. |
[Example]
Harness Connector Disconneting Procedure (Slide-Locking Type). Scheme 37
HARNESS CONNECTOR (LEVER LOCKING TYPE)
- Lever locking type harness connectors are used on certain control units and control modules such as ECM, ABS actuator and electric unit (control unit), etc.
- Lever locking type harness connectors are also used on super multiple junction (SMJ) connectors.
- Always confirm the lever is fully locked in place by moving the lever as far as it will go to ensure full connection.
| CAUTION | Always confirm the lever is fully released (loosened) before attempting to disconnect or connect these connectors to avoid damage to the connector housing or terminals. |
Harness Connector Disconneting Procedure (Lever Locking Type). Scheme 38
HARNESS CONNECTOR (DIRECT-CONNECT SRS COMPONENT TYPE)
- SRS direct-connect type harness connectors are used on certain SRS components such as air bag modules and seat belt pre-tensioners.
- Always pull up to release black locking tab prior to removing connector from SRS component.
- Always push down to lock black locking tab after installing connector to SRS component. When locked, the black locking tab is level with the connector housing.
