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Test 22A - Inoperative Blower Motor

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.
  1. Connect DRB. Read IGNITION VOLTAGE. If DRB display is above IGN VOLTAGE: 10.0V, go to next step. If ignition voltage is not as specified, perform TEST 54A.
  2. Remove and inspect fuse No. 21. If fuse is open, go to next step. If fuse is okay, go to step 5).
  3. Turn ignition off. Unplug ATC power module connector, located near blower motor connector. With DRB in ohmmeter mode, probe harness connector terminal No. 1 (Dark Green wire). If resistance is not less than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground on Dark Green wire. Replace fuse.
  4. Unplug blower motor connector. Replace fuse No. 21. Perform TEST 22B.
  5. Reinstall fuse No. 21. With DRB in voltmeter mode, probe ignition switch output terminal on fuse No. 21 (Black/Orange wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair Black/Orange wire between ignition switch and fuse panel. Perform VERIFICATION TEST.
  6. Unplug ATC power module connector, located near blower motor connector. With DRB in voltmeter mode, probe harness connector terminal No. 1 (Dark Green wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair Dark Green wire between fuse panel and ATC power module. Perform VERIFICATION TEST.
  7. With DRB in ohmmeter mode, probe harness connector terminal No. 3 (Black wire). If resistance is less than 5 ohms, go to next step. If resistance is not less than 5 ohms, repair open Black wire to ground. Perform VERIFICATION TEST.
  8. Reconnect wiring to ATC power module. Unplug Black connector from BCM, located above right kick panel. If blower does not run at full speed, go to next step. If blower runs at full speed, replace BCM. Perform VERIFICATION TEST.
  9. With DRB in ohmmeter mode, probe ATC power module harness connector terminal No. 2 (Red/Light Green wire). If resistance is not less than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground on Red/Light Green wire. Perform VERIFICATION TEST.
  10. Turn ignition off. Unplug blower motor connector. Connect jumper wire between Black wire at blower motor connector and Black wire at ATC power module connector. Connect jumper wire between terminal No. 1 (Dark Green wire) of ATC harness connector and Dark Green wire of blower motor connector. Turn ignition on for 10 seconds, then off. If fuse No. 21 blows, or blower doesn't run at high speed, go to next step. If blower runs at high speed without blowing fuse No. 21, replace ATC power module. Perform VERIFICATION TEST.
  11. Remove jumper wires. Remove blower motor. Inspect blower wheel for binding or damage. Repair as necessary. If no damage or binding exists, replace blower motor. Perform VERIFICATION Test.
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