Section F: Troubleshooting The Power Supply - BENDIX TABS-6 Service Data

Electronic Control Unit (ECU)
With ignition power supplied to the
trailer, measure the voltage between
the Ignition Power pin and the
Ground pin of the ECU connector.
Looking into Premium Bendix
Harness, ECU Connector Measure:
Pin 6 (Ignition Power) to Pin 18 (ground) and
Pin 12 (Brake Light Power) to Pin 18 (ground)
30
SECTION F: TROUBLESHOOTING THE
Go to Section A, page 25.
® TABS-6 ™ Module Wire
POWER SUPPLy
If repairs are made, rerun the
power-up sequence. Go to Section A,
page 25.
Looking into Standard Bendix TABS-6 Module Wire
Harness, ECU Connector Measure:
Pin B (Ignition Power) to Pin E (ground) and
Pin A (Brake Light Power) to Pin E (ground)
5- or 18-pin ECU
Measure the loaded
voltage across a type
1157 brake light bulb.