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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (Automatic Transmission System (UB80F) - Diagnostic Codes (1 Of 2)) >> Automatic Transaxle System >> DTC P0703-12: Brake Switch "B" Circuit Short to Battery [08/2020 - ] >> Monitor Description

Monitor Description

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This DTC indicates that the stop light switch is remaining on. When the stop light switch remains on during GO and STOP driving, the ECM interprets this as a malfunction of the stop light switch assembly, illuminates the MIL and stores this DTC. The vehicle must GO (30 km/h (19 mph) or more) and STOP (less than 3 km/h (2 mph)) 5 times for 2 consecutive driving cycles in order for this DTC to be stored.