Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING - Manual (Page 79)

Fault Isolation Procedures
Code 25, 32
(SID 231, FMI 2, 12, 14)
2-68
Code 25, 32 (SID 231, FMI 2, 12, 14) J-1939 and Cruise Signal Error
Step A Procedure Condition Action
1. Key off.
2. Disconnect the VORAD Central
Processing Unit 32-way
connector.
3. Disconnect engine ECU connector
which contains the J-1939 data
link.
4. Measure resistance between:
• Bendix ™ VORAD ®
system Central
Processing Unit
32-way connector pin
D7 and engine ECU
pin # (see engine
OEM for pin
location).
• VORAD system Central
Processing Unit
32-way pin D7 and
ground.
If resistance between pin D7
and engine ECU pin is 0 to .3
ohms and if resistance
between pin D7 and ground
is more than 10K ohms or
open circuit [OL]
If resistance is outside of
range
Go to Step B.
Repair J-1939 data link wiring
harness between engine ECU
and VORAD system. Go to Step V.
SEE ENGINE OEM
FOR PIN LOCATION
OHMS
V A COM
1
C D
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
GROUND
OHMS
V A COM
1
C D
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15