1

Aerial power supply signal check

Prepare the diagnostic equipment to download a voltage graph.

Select the VOLTMETER function from the INSTRUMENT menu with the time set at 1 minute

Connect pin 3 (positive) to pin 1 (earth) of the transmitter aerial

Press the START button on the diagnostic equipment to begin downloading a graph.

Check that the signal pattern corresponds to the attached graph.

   See E7060 TYRE INFLATION PRESSURE CONTROL SYSTEM

Move on to Step 2

Restore the continuity of the wiring between the TPMS control unit and the aerial

Restore the insulation of the wiring between the TPMS control unit and the aerial

Replace the aerial

Replace the TPMS Control Unit

   Op. 4450B91 TPMS SYSTEM CONTROL UNIT R R

2

Aerial signal check

Prepare the diagnostic equipment to download a voltage graph.

Select the VOLTMETER mode from the INSTRUMENT menu with the time set at 3

Connect pin 2 to pin 1 (earth) of the transmitter aerial

Press the START button on the diagnostic equipment to begin downloading a graph.

Check that the signal pattern corresponds to the attached graph.

   See E7060 TYRE INFLATION PRESSURE CONTROL SYSTEM

Restore the continuity of the wiring between the TPMS control unit and the aerial

Restore the insulation of the wiring between the TPMS control unit and the aerial

Replace the aerial

Replace the TPMS Control Unit

   Op. 4450B91 TPMS SYSTEM CONTROL UNIT R R

1

Earth

2

Signal

3

Fuel system