NO -
Repair an open in the wire(s) between the climate control unit and the recirculation control motor.?
10. Check for continuity between body ground and climate control unit connector A (40P) terminals No. 18 and No. 19 individually.
Is there continuity?
YES -
Repair a short to body ground in the wire(s) between the climate control unit and the recirculation control motor.?
NO -
Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit See:
Heating and Air Conditioning/Control Assembly/Service and Repair/Climate Control Unit Removal/Installation.?
L and Auto
DTC Troubleshooting: B1235 (L and AUTO)
DTC B1235 or DTC indicator L and AUTO:
A Problem in the Driver's Air Mix Control Linkage, Door, or Motor Circuit
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Do the self-diagnostic function with the HDS or the climate control unit.
4. Check for DTCs.
Is DTC B1235 or L and AUTO indicated?
YES -
Go to step 5.
NO -
Intermittent failure, check for loose wires or poor connections in the driver's air mix control motor circuit.?
5. Turn the ignition switch to LOCK (0).
6. Test the driver's air mix control motor See: Heating and Air Conditioning/Testing and Inspection/Component Tests and General
Diagnostics/Driver's Air Mix Control Motor Test.
Is the driver's air mix control motor OK?
YES -
Go to step 7.
NO -
Replace the driver's air mix control motor See: Heating and Air Conditioning/Air Door/Air Door Actuator / Motor/Service and Repair/Driver's Air
Mix Control Motor Replacement, or repair the driver's air mix control linkage or door.?
7. Disconnect the driver's air mix control motor 7P connector.
