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MANUAL A/C DIAGNOSIS TSB Revision HEATER, AIR CONDITIONING AND VENTILATION 55A-203 STEP 16. Measure the voltage at A/C-ECU connector C-15. (1) Disconnect A/C-ECU connector C-15 and measure the voltage at the relay box side. (2) Disconnect powertrain control module connector B-21 and ground harness side terminal No.81. (3) Turn the ignition switch to the "ON" position. AC305233 CONNECTOR: C-15 BG C-105 (B) HARNESS SIDE AC305216 B-21 (B) AC CONNECTOR: B-21 <2.4L> HARNESS SIDE 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 AC305229 B-21 (B) AB HARNESS SIDE 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 CONNECTOR: B-21 <3.8 L> AC306468 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 AC306468 CONNECTOR B-21 AD |