How to Read Wiring Diagrams: Description: Notes

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

ITEM DESCRIPTION REFERENCE

Number	Item	Description
1	Power condition	This shows the condition when the system receives battery positive voltage (can be operated).
2	Fusible link	The double line shows that this is a fusible link. The open circle shows current flow in, and the shaded circle shows current flow out.
3	Fusible link/fuse location	This shows the location of the fusible link or fuse in the fusible link or fuse box. For arrangement, refer to POWER SUPPLY ROUTING CIRCUIT .
4	Fuse	The single line shows that this is a fuse. The open circle shows current flow in, and the shaded circle shows current flow out.
5	Current rating	This shows the current rating of the fusible link or fuse.
6	Connectors	This shows that connector E3 is female and connector M1 is male. The G/R wire is located in the 1A terminal of both connectors. Terminal number with an alphabet (1A, 5B, etc.) indicates that the connector is SMJ connector. Refer to SMJ (SUPER MULTIPLE JUNCTION) .
7	Optional splice	The open circle shows that the splice is optional depending on vehicle application.
8	Splice	The shaded circle shows that the splice is always on the vehicle.
9	Figure crossing	This arrow shows that the circuit continues to an adjacent figure. The A will match with the A on the preceding or next figure.
10	Common connector	The dotted lines between terminals show that these terminals are part of the same connector.
11	Option abbreviation	This shows that the circuit is optional depending on vehicle application.
12	Relay	This shows an internal representation of the relay. For details, refer to STANDARDIZED RELAY .
13	Connectors	This shows that the connector is connected to the body or a terminal with bolt or nut.
14	Wire color	This shows a code for the color of the wire.
		B = Black W = White R = Red G = Green L = Blue Y = Yellow LG = Light Green BR = Brown OR or O = Orange P = Pink PU or V (Violet) = Purple GY or GR = Gray SB = Sky Blue CH = Dark Brown DG = Dark Green
		When the wire color is striped, the base color is given first, followed by the stripe color as shown below: Example: L/W = Blue with White Stripe
15	Option description	This shows a description of the option abbreviation used.
16	Switch	This shows that continuity exists between terminals 1 and 2 when the switch is in the A position. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17	Assembly parts	Connector terminal in component shows that it is a harness incorporated assembly.
18	Cell code	This identifies wiring diagram by section and system.
19	Current flow arrow	Arrow indicates electric current flow, especially where the direction of standard flow (vertically downward or horizontally from left to right) is difficult to follow. A double arrow "<==>" shows that current can flow in either direction depending on circuit operation.
20	System branch	This shows that the system branches to another system identified by cell code (section and system).
21	Figure crossing	This arrow shows that the circuit continues to another figure identified by cell code. The C will match with the C on another figure within the system other than the next or preceding figure.
22	Shielded line	The line enclosed by broken line circle shows shield wire.
23	Component box in wave line	This shows that another part of the component is also shown on another figure (indicated by wave line) within the system.
24	Component name	This shows the name of a component.
25	Connector number	This shows the connector number. The letter shows which harness the connector is located in. Example: M : main harness. For detail and to locate the connector, refer to "MAIN HARNESS ", "HARNESS LAYOUT ". A coordinate grid is included for complex harnesses to aid in locating connectors.
26	Ground (GND)	The line spliced and grounded under wire color shows that ground line is spliced at the grounded connector.
27	Ground (GND)	This shows the ground connection. For detailed ground distribution information, refer to "GROUND DISTRIBUTION ".
28	Connector views	This area shows the connector faces of the components in the wiring diagram.
29	Common component	Connectors enclosed in broken line show that these connectors belong to the same component.
30	Connector color	This shows a code for the color of the connector. For code meaning, refer to wire color codes, Number 14 of this chart.
31	Fusible link and fuse box	This shows the arrangement of fusible link(s) and fuse(s), used for connector views of POWER SUPPLY ROUTING CIRCUIT . The open square shows current flow in, and the shaded square shows current flow out.
32	Reference area	This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors (J/C) exists. Refer to "REFERENCE AREA " for details.