User's Manual

80-J4866-1 Rev. A 1/9/06 9-11

ALL INFORMATION SUBJECT TO CHANGE

Cable Installation Power Cable Wire Connections

Power Cable Wire Connections

The vehicle battery supplies the power to the MAS. There are three required connections that

you must make at the fuse end of the power cable:

• +12 VDC Battery (Main) (unswitched)

• +12 VDC Ignition (switched)

• Chassis ground

The following illustration shows the wire colors, pin, signal, and connection. Each wire’s

purposes is identified with a wrap-around label.

Follow these steps to connect the power cable wires to the vehicle’s wiring system:

Note

Never wire the constant +12 VDC connections or +12 VDC ignition to the accessory position.

1. The yellow BAT+ wire (pins 1, 2, 9) is for the unswitched (Main) +12 VDC connection.

Connect this wire to an unswitched +12 VDC power source, such as the hot side of the

vehicle main wiring bus, the battery side of the ignition switch, or the battery side of the

fuse block (not the load side). This bus provides constant +12 VDC to the MCP and

must not be connected to the accessory bus or any other switched bus.

2. The white IGNITION wire (pin 5) is for the switched (ignition) connection. Connect this

wire to the switched +12 VDC power source, such as the ignition side of the ignition

(key) switch or the ignition side of the fuse block. Do not use accessory power.

Note

+12 VDC should be present on the IGNITION wire only when the ignition switch is in the

On position, not in the Accessory position.

3. The black BAT RTN wires (pins 7, 8, 14, 15) should be connected to a good grounding

surface on the vehicle chassis or one that is connected to the chassis. Refer to

Grounding Guidelines

on page 3-2 for more information.

05AAA_225

Power Cable

15-AMP

3-AMP