939010272 - 5040DF Sequential procedure for checking air conditioner fan operation (Manual Air Conditioning)

Disconnect the electrical connector for the climate control fan    See H081 CLIMATE CONTROL FAN CONTROLPosition the fan speed knob in neutral postion (fan symbol) and check that:

• There is an open circuit between pins 1 and 2.
• There is an open circuit between pins 1 and 3.
• There is an open circuit between pins 1 and 5.

Place the fan speed knob at 1 and check that:

• There is electrical continuity between pins 1 and 2.
• There is an open circuit between pins 1 and 3.
• There is an open circuit between pins 1 and 5.

Place the fan speed knob at 2 and check that:

• There is electrical continuity between pins 1 and 3.
• There is an open circuit between pins 1 and 2.
• There is an open circuit between pins 1 and 5.

Place the fan speed knob at 3 and check that:

• There is electrical continuity between pins 1 and 2.
• There is an open circuit between pins 1 and 3.
• There is an open circuit between pins 1 and 5.

Place the fan speed knob at 4 and check that:

• There is electrical continuity between pins 1 and 5.
• There is an open circuit between pins 1 and 2.
• There is an open circuit between pins 1 and 3.

Reconnect the electrical connector for the control.    See H081 CLIMATE CONTROL FAN CONTROLDisconnect the electrical connector for the climate control system control unit    See M070 CLIMATE CONTROL SYSTEM CONTROL UNIT Place the fan speed knob in position 1 and check that the voltage between pins 2 and 6 is between 9.6 and 14.4 V.