User's Manual

Fault Isolation Procedures

2-71

Code 25, 32 (SID 231, FMI 2, 12, 14) J-1939 and Cruise Signal Error, continued

Step D Procedure Condition Action

1. Key off.

2. Measure resistance

between the Bendix

™

VORAD

system

32-way connector pin

D7 and pin D8.

Note: Make sure the volt/ohm

meter is on the proper scale.

(200 ohm scale)

If resistance between pin D7

and pin D8 is between 50 to

70 ohms

If resistance is more than

70 ohms

If resistance is less than

50 ohms

Go to Step E.

One or both of the terminating

resistors on the J-1939 data

link wiring harness are either

missing or out of range.

Repair J-1939 data link wiring

harness. Go to Step V.

Repair the J-1939 data link between

the engine ECU and VORAD system.

Go to Step V.

OHMS

V ACOM