DTC Troubleshooting: B1241 (N)
DTC B1241 or DTC indicator N:
 A Problem in the Blower Motor Circuit
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch OFF and then ON (II).
  1. Do the self-diagnostic with the HDS or heater control unit.
  1. Check for DTCs.
Is DTC B1241 or N indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, check for loose wires or poor connections on the blower motor circuit.■
  1. Turn the ignition switch OFF.
  1. Check the No. 19 (40 A) fuse in the under-hood fuse/relay box, and the No. 36 (10 A) fuse in the under-dash fuse/relay box.
Are the fuses OK?
YES -
Go to Step 7 .
NO -
Replace the fuses, and recheck. If the fuses blow again, check for a short in the No. 19 (40 A) and No. 36 (10 A) fuses circuit.■
  1. Connect the blower motor 2P connector terminal No. 2 to body ground with a jumper wire.
  1. Turn the ignition switch ON (II).
Does the blower motor run?
YES -
Go to Step 9 .
NO -
Go to Step 24 .
  1. Turn the ignition switch OFF.
  1. Disconnect the jumper wire.
  1. Disconnect the power transistor 4P connector.