Instructions

Battery Power Supply:

Battery Power Supply
This symbol represents a direct battery power supply and refers the user to Figure 01.1, 01.2 or 01.3.

Use the Hyperlink to access Figure Numbers referred to in the wiring diagram. Refer to -- Vehicle / Diagrams Electrical Diagrams

Ignition Switched Power Supply:

Ignition Switched Power Supply
This symbol represents ignition switched power supply and refers the user to Figure 01.1, 01.4 or 01.5.

The suffix indicates auxiliary power. Power is supplied in ignition switch key positions I (AUXILIARY) and II (IGNITION).

The suffix II indicates ignition power. Power is supplied in ignition switch key positions II (IGNITION) and II (ENGINE CRANK).

The suffix E indicates engine management switched power. Power is supplied in ignition switch key positions II (IGNITION) and III (ENGINE CRANK) under ECM control.

Ignition Switched Ground:

Ignition Switched Ground
This symbol represents an ignition switched ground and refers the user to Figure 02.1.
This symbol without a suffix indicates CRANK. Ground is completed in ignition switch key position III (ENGINE CRANK).

The suffix I indicates auxiliary ground. Ground is completed in ignition switch key positions I (AUXILIARY) and II (IGNITION).

The suffix II indicates ignition ground. Ground is completed in ignition switch key positions II (IGNITION) and III (ENGINE CRANK).

Figure Number Reference Flag:

Figure Number Reference Flag
This symbol refers the reader to a figure number only. It does not refer to a flag with the same number on a different figure.

As used in Figures 01.1 through 02.1, the reference flag refers the user to a continuation of the circuit. In this instance, the user matches the number to a Power Supply or Ground symbol to trace the circuit.

In most other cases, it is not necessary to refer to another figure for completion of a circuit, as the reference flags are used to indicate parallel circuits and circuits that share components. Most of the circuits where this situation occurs are overlapped to avoid the necessity for cross-referencing to another figure. Exceptions to this rule are instances where signals are transmitted to or received from other system circuits. When circuits are not overlapped, they are noted by (CIRCUIT CONTINUED).

BPM Because the Body Processor Module appears numerous times, the abbreviation BPM is used in the reference flags on Figures 01.2 and 02.1 in order to conserve space.

Control Module Input, Output, Data Line Signal Ground:

Control Module Input, Output, Data Link, Signal Ground and Network(s)
These six symbols are employed to assist the user in visualizing the 'logic' of circuits containing control modules. The symbols identify control module input, output, data link, signal ground and network pins. These symbols are a so employed on the corresponding data page.

Harness Component Numbers

Connectors:

Connectors
HARNESS CODE + CONNECTOR NUMBER + PIN NUMBER
EXAMPLE: FC7-24 (pin number is separated by a dash)
Where the pin number differs from LHD to RHD, the connector number will be further identified by (LHD) or (RHD).

Splices:

Splices
HARNESS CODE + S (SPLICE) + SPLICE NUMBER
EXAMPLE: RHS3 (no dash is used)

NOTE: In order to avoid unnecessary circuit complication, multiple splices (more than two wires) within components, in wires leading from input components to multiple circuits and in harness 'ground' sides, are simplified so as not to show wires from other circuits.

Diodes:

Diodes
Harness diodes occur at connectors and are depicted as components and identified by a connector number.

Relay Connectors:

Relay Connectors
Relay connector numbers are shown within the relay. The connector number is shown in the upper portion of the relay; the pin (terminal) number is shown adjacent to the pin. Certain relays are paired and share a modular connector. In this instance, the connector number remains the same for both relays while the pin numbers of the second relay are identified by numbers 6 - 10.

Eyelet Designation:

Grounds
HARNESS CODE + GROUND STUD NUMBER + EYELET STUD POSITION (A,B,C) + EYELET DESIGNATION (S,L,R)

Eyelet Stud Position
There may be up to three eyelets on one stud. A, B and C are used to indicate the position of the eyelet on the stud: A - first (bottom), B - second (middle), C - third (top).

Eyelet Designation
Two eyelet variations are used: a single eyelet and an eye et pair. The single eyelet has a single 'leg', which is identified by an S; the eyelet pair has two 'legs', identified as L (eft) or R (right).