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Blower Motor Does Not Operate In Any Speed

  1. Turn ignition switch to RUN position. Turn mode selector to VENT position. Leave blower switch connector attached. Connect test light between ground and Light Green wire terminal of blower switch connector (backprobe terminal).
  2. If test light comes on, go to next step. If test light does not come on, connect test light between ground and Brown wire terminal of mode selector switch connector. If test light does not come on, repair open Brown wire. If test light comes on, check for open Light Green wire. If Light Green wire is okay, replace mode selector switch.
  3. Turn ignition switch to RUN position. Turn blower switch to low position. Connect test light between ground and Yellow wire terminal of blower switch connector. If test light comes on, go to next step. If test light does not come on, check for poor connection at Yellow wire and Light Green wire terminals of blower switch connector. If connections are okay, replace blower switch.
  4. Disconnect high blower relay connector (relay is located to right of accelerator pedal, on heater air duct). Connect a fused jumper wire between Dark Blue wire and Purple wire terminals of high blower relay connector. Turn ignition switch to RUN position. Turn blower switch to low position. Turn mode selector to VENT position.
  5. If blower motor does not run, go to next step. If blower motor runs, check for poor connection at high blower relay connector terminals. If connections are okay, replace high blower relay.
  6. Leave fused jumper wire connected. Disconnect blower motor connector. Connect test light between Purple wire and Black wire terminals of blower motor connector. If test light does not come on, go to next step. If test light comes on, check for poor connection at blower motor connector. If connection is okay, replace blower motor.
  7. Leave fused jumper wire connected. Connect test light between ground and Purple wire terminal of blower motor connector. If test light comes on, repair open Black wire. If test light does not come on, repair open Purple wire.
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