Bendix Commercial Vehicle Systems EC-80 ABS ATC SD - Manual (Page 25)

25
11 J1939
1st. Blink
Code
Location
Troubleshooting Diagnostic Trouble Codes:
J1939 Serial Communications
2nd.
Blink
Code
Diagnostic Trouble
Code Description
Repair Information
1 J1939 Serial
Link Loss of
Communications
Loss of communications between the Bendix ® EC‑80 ™ controller and other devices
connected to the J1939 link. Check for damaged or reversed J1939 wiring. Check for
corroded or damaged connectors. Verify ECU Configuration. Check for other devices
inhibiting J1939 communications.
2 J1939 Electronic
Retarder Timeout
or Invalid Signal
(ERC1)
Check for damaged or reversed J1939 wiring. Check for corroded or damaged connectors.
Verify presence of retarder on the J1939 link. Verify ECU Configuration. Verify that the
retarder is configured to broadcast ERC1. Check for other devices inhibiting J1939
communications.
3 J1939 Electronic
Engine Controller 1,
Timeout or Invalid
Signal (EEC1)
Check for damaged or reversed J1939 wiring. Check for corroded or damaged connectors.
Verify presence of ECU on the J1939 link. Verify ECU Configuration. Verify the ECU is
configured to broadcast EEC1. Check for other devices inhibiting J1939 communications.
4 J1939 Electronic
Engine Controller 2
Timeout or Invalid
Message (EEC2)
Check for damaged or reversed J1939 wiring. Check for corroded or damaged connectors.
Verify presence of Engine ECU on the J1939 link. Verify ECU Configuration. Verify that
there is an EEC2 broadcast from the address configured in the ABS ECU. Check for other
devices inhibiting J1939 communications.
10 J1939 Transmission
Loss of
Communications,
ETC1 Message
Loss of communications between the Bendix EC‑80 controller and the transmission ECU
over the J1939 link. Check for damaged or reversed J1939 wiring. Check for corroded
or damaged connectors. Verify presence of engine ECU on the J1939 link. Verify ECU
Configuration. Check for other devices inhibiting J1939 communications.
15 J1939 Engine Loss
of Communications,
EEC3 Message
Loss of communications between the Bendix EC‑80 controller and the engine ECU over the
J1939 link. Check for damaged or reversed J1939 wiring. Check for corroded or damaged
connectors. Verify presence of engine ECU on the J1939 link. Verify ECU Configuration.
Check for other devices inhibiting J1939 communications.
16 J1939 Engine Loss
of Communications,
ETC2 Message
Loss of communications between the Bendix EC‑80 controller and the transmission ECU
over the J1939 link. Check for damaged or reversed J1939 wiring. Check for corroded
or damaged connectors. Verify presence of engine ECU on the J1939 link. Verify ECU
Configuration. Check for other devices inhibiting J1939 communications.
J1939 Troubleshooting Tests:
1. Take all measurements at ECU harness connector.
2. Check for damaged or reversed J1939 wiring. 3. Check for corroded or damaged wiring connector
problems such as opens or shorts to voltage or ground.
4. Check for other J1939 devices which may be loading
down (inhibiting) J1939 communication.
Cab-mount ECU:
Looking into wire harness connector
Connector Pin J1939
X1 7 J1939 Low
18 Way 8 J1939 High