Fault isolation procedures, Step b procedure condition action – Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING User Manual
Page 94
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Fault Isolation Procedures
2-83
Code 33 (SID 248, FMI 12) VBUS Error, continued
Step B
Procedure
Condition
Action
1. Key off.
2. Measure resistance between:
• Central Processing
Unit 32-way
connector pin C6
and Antenna 4-way
connector pin 1.
• Central Processing
Unit 32-way pin C6
and ground.
If resistance between pin C6
and pin 1 is 0 to .3 and
if resistance between pin C6
and ground is more than 10K
ohms or open circuit [OL]
If any of the above conditions
are not met
Go to Step C.
Repair OEM wiring harness
between Antenna and Central
Processing Unit. Go to Step V.
1
C
D
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
1
C
D
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
OHMS
GROUND
V
A
COM
OHMS
V
A
COM
1
2
3
4
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