DTC B2969: Climate Control Unit Lost Communication with Combination Switch Control Unit (WIPSW message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in the B-can system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0), and then ON (II).
Wait for 6 seconds or more.
Do the self-diagnostic with the HDS (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITH THE HDS ).
Check the DTCs.
Is DTC B2969 indicated?

YES - Go to step 6.

NO - Intermittent failure, check for loose wire or poor connection on the climate control unit connector A (40P).
Check for DTCs with the HDS.
Are any of the following DTCs indicated; B1958, B1063, or B1156 indicated?

YES - Do the wiper/washer switch (combination switch control unit) input test (see WIPER/WASHER SWITCH (COMBINATION SWITCH CONTROL UNIT) INPUT TEST ).

NO - Do the climate control unit troubleshooting (see CLIMATE CONTROL UNIT TROUBLESHOOTING ).