Test results
1
AERIAL POWER SUPPLY CHECK
All OK
Problems encountered
Operation
Check that the aerial is receiving the correct power supply
Move on to Step 2
Power supply interrupted
Restore correct power supply
2
WIRING CONTINUITY CHECK
Check the continuity of the power supply wiring
Move on to Step 3
Wiring defective
Restore or, if necessary, replace the wiring
3
SIGNAL CONTINUITY CHECK
Check the correct continuity of the signal between the tyre monitoring control unit and activator
Move on to Step 4
Activator signal interrupted
Restore signal continuity
4
WIRING INSULATION CHECK
Check the earth insulation of the wiring
Move on to Step 5
Wiring short-circuited to earth
Restore the correct insulation for the wiring
5
AERIAL OPERATION CHECK
Check that the transmitter aerial is working properly
See Test 4450BB TPMS SYSTEM TRANSMITTER AERIAL OPERATION CHECK
End of diagnosis
Aerial not working properly
Replace the aerial