Bendix Commercial Vehicle Systems VORAD VS-400 INSTALLATION NOTES User Manual
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General Information
30
Diagnostic Trouble Code (DTC)
Isolation Procedures
Code 41, FMI 5
1 .
Check to see if Pin-1 of the DIU harness connector is populated .
a .
If no, test complete . The DIU does not utilize a RH external speaker .
Disable the RH external speaker output using diagnostic software .
b .
If yes, continue to next step .
2 .
Check for an open circuit in the external speaker by measuring the resistance between
Pin-1 and Pin-5 of the DIU harness connector .
a .
If value is greater than 5 ohms, text failed . Check external speaker and harness
for an open circuit . Repair as needed .
b .
If value is 2 to 5 ohms, continue to next step .
3 .
Replace DIU and verify Diagnostic Trouble Code (DTC) condition has cleared .
4 .
Test Complete .
Code 42, FMI 4
1 .
Check for a short to ground by measuring the resistance between Pin-2 and Pin-5 of the
DIU harness connector .
a .
If value is less than 3 ohms, test failed . Check external speaker and harness for
short to ground . Repair as needed .
b .
If value is 2 to 5 ohms, continue to next step .
2 .
Replace DIU and verify Diagnostic Trouble Code (DTC) condition has cleared .
3 .
Test Complete .
Code 42, FMI 5
1 .
Check to see if Pin-2 of the DIU harness connector is populated .
a .
If no, test complete . The DIU does not utilize a LH external speaker .
Disable the LH external speaker output using diagnostic software .
b .
If yes, continue to next step .
2 .
Check for an open circuit in the external speaker by measuring the resistance between
Pin-1 and Pin-5 of the DIU harness connector .
a .
If value is greater than 5 ohms, test failed . Check external speaker and harness
for an open circuit . Repair as needed .
b .
If value is 2 to 5 ohms, continue to next step .
3 .
Replace DIU and verify Diagnostic Trouble Code (DTC) condition has cleared .
4 .
Test Complete .