Operation CHARM: Car repair manuals for everyone.

Test Point 3 - Blower

Test Point 3 - BLOWER

3. Blower (Test Lamp/Voltmeter)

Turn on ignition.

Set program switch to

Blower should be running at maximum speed. If not, check fuse no.17.

Blower not running, check:

a) CEL plug G 15: approx. 12 V (control switch okay).

b) Pull off DEF relay VIII, bridge term. 30 and 87 - blower running or approx. 12 V on CEL plug G 22 (check relay socket/relay).

c) The 2-pin blower plug must have approx. 12 V (blower motor); set control switch to DASH.

d) Approx. 12 V on CEL plug G 14 (control switch okay).

e) Pull off blower relay X, bridge term. 30 and 87 - blower running or approx. 12 V on CEL plug G 21 (check relay socket/relay).

f) There must be between 4 and approx. 12 V on the 2-pin blower plug (depending on speed switch position).