C1AB4 — and C1AB5 Toyota - Blind Spot Monitor

This C1AB4 Diagnostic Trouble Code (DTC) is stored when the Blind Spot Monitor Sensor Left (LH) detects an open in the Outer Rear View Mirror Sub-Assembly Left (LH) (Outer Rear View Mirror Indicator Left [LH]).

C1AB5 Toyota DTC code is stored when the Blind Spot Monitor Sensor Right (RH) detects an open in the Outer Rear View Mirror Sub- Assembly Right (RH) (Outer Rear View Mirror Indicator Right [RH]).