Nissan Maxima Service and Repair Manual: DTC/circuit diagnosis

• Power supply routing circuit

Wiring Diagram -Battery Power Supply - Wiring Diagram -Accessory Power Supply - Wiring Diagram -Ignition Power Supply - Fuse If fuse is blown, be sure to eliminate cause of malfunction 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. Fusible Link A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is questionable, use circuit tester or test lamp.

• Ground

Ground Distribution MAIN HARNESS ENGINE ROOM HARNESS FRONT END MODULE HARNESS ENGINE CONTROL HARNESS BODY HARNESS BODY NO.

• Harness

Harness Layout HOW TO READ HARNESS LAYOUT The following Harness Layouts use a map style grid to help locate connectors on the drawings: Main Harness, Console Sub-harness and Console Switch Subharness Engine Room Harness and Front End Module Harness Engine Room Harness (Passenger Compartment) Engine Control Harness and Knock Sensor Sub-harness Body Harness, Front Seat LH Harness, Tail Harness and Chassis Harness Body No. 2 Harness, Front Seat RH Harness, Rear Parcel Shelf Harness and Tail Sub-harness Room Lamp Harness and Sunroof Sub-harness To use the grid reference Find the desired connector number on the connector list. Find the grid reference.

• Electrical units location

Electrical Units Location ENGINE COMPARTMENT PASSENGER COMPARTMENT LUGGAGE COMPARTMENT

• Harness connector

Description 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 figure 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 (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.

• Standardized relay

Description NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS Relays can mainly be divided into three types: normal open, normal closed and mixed type relays TYPE OF STANDARDIZED RELAYS 1M * 1 Make 2M * 2 Make 1T * 1 Transfer 1M*1B * 1 Make 1 Break

• Fuse block - junction box (J/B)

Terminal Arrangement

• Fuse, fusible link and relay box

Terminal Arrangement

• IPDM E/R (intelligent power distribution module engine room)

Fuse, Connector and Terminal Arrangement