Test 17B - Blower Runs At High Speed Only
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform TEST 17A before proceeding with this test.
- Turn ignition off. Unplug BCM, located above right kick panel. With DRB in ohmmeter mode, probe Black wire in cavity No. 21 of Beige BCM harness connector. If resistance is less than 5 ohms, go to next step. If resistance is not as specified, repair open Black wire to ground.
- With DRB in ohmmeter mode, probe Black/Light Green wire in cavity No. 14 of Beige BCM harness connector. If resistance is less than 5 ohms, go to next step. If resistance is not as specified, repair open Black/Light Green wire to ground.
- Unplug wiring from ATC power module, located next to blower motor connector. Turn ignition on. With DRB in voltmeter mode, probe Black BCM connector cavity No. 4 (Red/Light Green wire). If display is less than 10 volts, go to next step. If display is not as specified, repair short to voltage on Red/Light Green wire.
- Reconnect ATC power module wiring. Connect jumper wire between ground and Red/Light Green wire at Black BCM connector cavity No. 4. If blower motor still runs at full speed, go to next step. If blower does not run at full speed, replace BCM. Perform VERIFICATION TEST.
- Unplug ATC power module. Using external ohmmeter, measure resistance of Red/Light Green wire between Black BCM connector cavity No. 4 and blower motor connector. If resistance is less than 5 ohms, go to next step. If resistance is not as specified, repair Red/Light Green wire.
- With DRB in ohmmeter mode, probe Black wire at ATC power module connector. If resistance is not less than 5 ohms, repair open Black wire to ground. If resistance is less than 5 ohms, replace ATC power module. Perform VERIFICATION TEST.