PREVOST X3-45 Multiplex, Руководство по обслуживанию

Страница: 602 / 1422

28
REVISED 5/31/05
11 J1939
1st. Blink
Code
Location
Troubleshooting Diagnostic Trouble Codes:
J1939 Serial Communications
2nd. Diagnostic
Blink Trouble Code
Code Description
1 J1939 Serial Link
2 J1939 Retarder
3 J1939 Engine
Communications
4 J1939 Invalid Data
(Engine Retarder)
5 J1939 Supply
Pressure
6 J1939 ESP
Messages
Invalid Data
Loss of communications between the EC-60
™
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.
Loss of communications between the EC-60
™
controller and other devices connected to the
J1939 link. Check for damaged or reversed J1939 wiring. Check for corroded or damaged
connectors. Verify presence of retarder on the J1939 link. Verify ECU Configuration. Check
for other devices inhibiting J1939 communications.
Loss of communications between the EC-60
™
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.
Invalid data received from the engine or retarder. Check for damaged or reversed J1939
wiring. Check for damaged or corroded connectors. Verify presence of engine and/or retarder
on J1939. Verify proper programming of engine and/or retarder. Check for other devices
inhibiting J1939 communications.
Invalid pressure signals received from a vehicle controller. Verify proper operation of brake
demand sensors. Check wiring between brake demand sensors and the vehicle controller.
Verify proper programming of vehicle controller. Check for damaged or reversed J1939
wiring. Check for damaged or corroded connectors. Check for other devices inhibiting
J1939 communications.
Invalid ESP messages on the J1939 link. Check for damaged or reversed J1939 wiring.
Check for damaged or corroded connectors. Verify presence of engine and/or retarder
on J1939. Verify proper programming of engine and/or retarder. Check for other devices
inhibiting J1939 communications.
Repair Information
Cab-mount ECU:
Looking into wire harness connector
Connector Pin J1939
X1 7 J1939 Low
18 Way 8 J1939 High
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
X 4