Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2.3
Overview of faults
Page 7 of 11
TABLE OF CONTENTS
Fault description
Possible cause
Troubleshooting
Seat cushion heater or backrest heater does
not operate.
• Power supply of the vehicle is
defective.
• Plug connection to the vehicle is
defective.
• Heater cable is squeezed or chafed.
• Seat heater is defective.
Check electrical system of the
vehicle.
Check the plug and socket
connection, restore it, if necessary.
Check the seat heater (Chapter 2.4,
inspection step 4.1).
Check the seat heater (Chapter 2.4,
inspection step 4.1).
Seat has too much clearance in the
transverse direction (seat wobbles).
• Side clearance of rollers in the lower
or upper suspension part is too large.
• Fixed bearings or rollers of the
swinging structure are defective.
• Swinging structure is defective.
Replace the seat suspension (see
Chapter 3.44).
Replace the seat suspension (see
Chapter 3.44).
Replace the seat suspension (see
Chapter 3.44).
