Vehicles 638.0/1/2 from 10/13/1997
Removing
1. Disconnect the negative cable from the battery.
2. Remove the heater.
3. Remove control box 1 (see fig. 10.4).
Pic. 10.4. Ignition sensor (vehicles 638.0/1/2 from 10/13/1997):
1. Control unit,
2. Lid,
3. Wiring connector,
4. Ignition sensor.
4. Remove cover 2.
5. Disconnect the wire from the ignition sensor 4 with connector 3.
6. Unscrew ignition sensor 4.
Installation
7. Installation is made in an order, the return to removal.