Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2.4
Fault diagnosis
Page 12 of 16
TABLE OF CONTENTS
5 Inspection of the belt tensioner cable
Preconditions for fault diagnosis:
• Electrical system of the vehicle has been inspected and found to be OK in compliance with the vehicle operating
instructions.
• Seat heater has been inspected and found to be OK.
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
5.1
• Disconnect the electrical connection (E)
between the belt tensioner and the belt
tensioner cable and short-circuit the plug of
the belt tensioner cable.
• Measure the resistance at the contacts in the
plug for vehicle connection (pin assignment for
Actros, Atego, Axor, bus seat):
K1 (brown)
Ω
K2 (blue)
<< 1
Ω
(
R
→
0)
(pass)
≥
1
Ω
(
R
→ ∞
)
(interruption)
End of inspection.
Replace the belt tensioner
cable (see Chapter 3.20).
