( TF09E8HK711000Y2968FAAT00 )
DTC Troubleshooting: B2968 (K and AUTO)
DTC B2968 or DTC indicator K and AUTO:
A Short in the Humidity Sensor Circuit
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0), and then to ON (II).
  1. Check for DTCs.
Is DTC B2968 or K and AUTO indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the climate control unit 36P connector.
  1. Disconnect the humidity/in-car temperature sensor 4P connector.
  1. Check for continuity between body ground and the climate control unit 36P connector No. 1, 3, and No. 24 terminals individually.
Is there continuity?
YES -
Repair short to body ground in the wires between the climate control unit and the humidity sensor.■
NO -
Go to Step 9 .
  1. Check for continuity between terminals of the climate control unit 36P connector as follows.
    From terminal
    To terminals
    1
    3, 24
    3
    24

Is there continuity between any of the terminals?
YES -
Repair the short in the wires.■
NO -
Go to Step 10 .
  1. Turn the ignition switch to ON (II), and check the same terminals for voltage to body ground.
Is there any voltage?
YES -
Repair short to power in the wires between the climate control unit and the humidity sensor. This short may also damage the climate control unit. Repair the short to power before replacing the climate control unit .■
NO -
Go to Step 11 .
  1. Reconnect the humidity/in-car temperature sensor 4P connector.
  1. Reconnect the climate control unit 36P connector.
Is the humidity temperature sensor OK?
YES -
Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit .■
NO -