Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2.4
Fault diagnosis
Page 15 of 16
TABLE OF CONTENTS
7 Inspection of the belt buckle with belt buckle cable
Preconditions for fault diagnosis:
•
The electrical system of the vehicle has been inspected and found to be OK in compliance with the vehicle operating
instructions.
•
The belt buckle is open (belt latch is not locked into the belt buckle).
Note:
The components mentioned above are illustrated in Chapter 2.1, if not stated otherwise in this text.
Step
no.
Inspect/operate
Result/specified status
Troubleshooting
7.1
• Disconnect the electrical connection (F)
between the belt buckle cable and the cable of
the belt buckle contact.
• Measure the resistance at the pins P1 and P2
in the plug of the belt buckle cable.
P1
Ω
P2
= 0.2
Ω
(
±
10%)
>> 0.2
Ω
(
→ ∞
)
(interruption)
<< 0.2
Ω
(
→
0
)
(short-circuit)
End of inspection.
Replace the belt buckle and
the belt buckle cable
(Chapter 3.28).
