Power And Ground; Abs Indicator Lamp - BENDIX TABS-6 TRAILER ABS MODULE Manual

Power/ABS Indicator Lamp Connector
The TABS-6 module pigtail uses a TTMA RP 97-99 5-pin
Packard Weather Pack connector for brake light power,
constant power, ground and the trailer-mounted ABS
indicator lamp.
The Power/ABS indicator lamp lead of the pigtail harness
is available in several lengths to satisfy most installation
requirements (e.g. slider axles).
wheel Speed Sensor Connectors
Two 2-pin connectors are provided for additional wheel
speed sensors for 4S ABS applications. These 2-pin
connectors are labeled Additional Sensor Left (SAL), and
Additional Sensor Right (SAR). Extension cables are
available in various lengths from Bendix.
ABS Modulator Connectors
On Premium TABS-6 module pigtail harnesses, one or two
modulator connectors are provided for trailers using two
or three modulators. These 3-pin connectors are labeled
MOD2 and MOD3. (Note: MOD1 designates the internal
modulator of the TABS-6 module). Remote modulator
harnesses are available in many lengths to satisfy most
installation requirements.
Diagnostic Connector
Premium TABS-6 module pigtail harnesses provide a 4-
pin diagnostic connection for a diagnostic tool to monitor
ECU ignition power, ground and data information. Remote
diagnostic cables are available from Bendix to provide a
standard J1708/J1587 diagnostic port at the side of the
trailer.
Auxiliary I/O Connector
Standard TABS-6 module pigtails provide an option for
a single auxiliary I/O. An optional auxiliary connector
provides a connection to the TABS-6 module auxiliary I/O
ECU pins. Premium ECU pigtails provides an option for
up to six auxiliary I/O's.

POwER AND GROUND

Trailer electrical power is supplied to the TABS-6 module
from the ignition and brake light circuits. See Charts 1 and
2 for output values and pin locations.
Function Mode
Operating Range
ECU Active
ABS Active
(1 Modulator)
ABS Active
(2 Modulators)
CHART 1 – VALUES FOR OUTPUTS
4
Value
8.0 to 16.0 VDC
135 mA @ 12 VDC
3.7 A @ 12 VDC
5.2 A @ 12 VDC
7-Pin
Circuit Trailer
Conn.
Ignition Power
7
PLC
(Blue Wire)
Brake Light
Power 4
(Red Wire)
Ground
1
(White Wire)
Indicator Lamp
N/A
(White/green
Wire)
CHART 2 – POWER And GROUnd
FIGURE 5 - TRAILER-mOUnTEd ABS IndICATOR LAmP

ABS INDICATOR LAMP

Trailer-mounted Lamp
The TABS-6 module controls an ABS indicator lamp to show
the trailer ABS status. With power supplied by the towing
vehicle, the module illuminates the ABS indicator lamp by
providing a 12.0 VDC signal. (The other side of the lamp
is grounded.) The ABS indicator lamp output uses Pin D
of the 5-pin Standard module connector, and Pin 5 of the
18-pin Premium module connector.
Dash-mounted Lamp (PLC Controlled)
TABS-6 modules use SAE J2497 standards to support
Power Line Carrier (PLC) communication. The TABS-6
module transmits a signal over the power line to the towing
vehicle. This information is used by towing vehicle's
ABS controller to know when to illuminate the trailer ABS
indicator lamp mounted on the dash.
The status of the trailer ABS is transmitted over the ignition
power wire (blue wire of the J560 connector), Pin B of the
5-pin Standard module connector, or Pin 6 of the 18-pin
Premium module connector.
5-Pin 5-Pin 8-Pin
ABS ECU ECU
Conn. Conn. Conn.
B B
A A 12
E E 18
D D
6
5