BENDIX Wingman ACB Service Data page 18

Diagnostic Trouble Codes (DTC)
186 – J1939 Outside air temperature signal not available
or signal in error.
(This trouble code alone will not cause ACB to
disable. The heater on the lens of the ACB sensor
will not operate and will not prevent ice or snow
build up. The sensor may become blocked and
then ACB will disable, logging a trouble code 201.)
®
TABLE 6 - BENDIX WINGMAN
18
®
ACB TROUBLESHOOTING CODES
Actions
Review the following section:
• J1939 SERIAL DATA COMMUNICATIONS LINK
• J1939 ENGINE COMMUNICATIONS TEST
PROCEDURE
• J1939 TROUBLESHOOTING PROCEDURE
TROUBLESHOOTING WIRING HARNESS
• DIAGNOSTIC TROUBLE CODE 201
Perform the following:
• Check for loss of data communications.
• Check for damaged or reversed J1939 wiring.
• Check for damaged or corroded connectors.
• Check for other
communications.
• With the power off, check the resistance across
connector pins (60 ohm) J1939.
• Check the reverse polarity of J1939 communications
circuits at engine, ABS, and ACB sensor and at
harness interconnections.
• Check the source of the signal for why the signal has
an error.
• Check engine, and vehicle for trouble codes using the
manufacturers diagnostic procedures. The engine,
or a vehicle controller may be the sources of the
signals. If the signal is in error, then the issue is from
the sensor input to one of these controllers.
Perform the following:
• Clear the Wingman
the procedure CLEARING BENDIX
DIAGNOSTIC TROUBLE CODES.
• If the error returns, call the Bendix Tech Team for
assistance at 1-800-AIR-BRAKE.
devices inhibiting
®
ACB trouble codes using
® WINGMAN
J1939
®