solution for Mazda3 BCM fault Year 2013 BCM repair experience fault symptom reversing lamp light up continuously

By Steve powell

UNIQUE AUTO ELECTRONIC, INC.

Whatsapp/ Viber/ Telegram/ BBM: +8617154835574

Skype: u-obd@hotmail.com

Website: www.u-obd.com

Car Brand & Model: Mazda3
Manufactured Year: 2013
Fault symptom: Reversing lamp always light up;

Solution: Change the Transistor 5016SDA, the Fault will be solved.

A Bosch M7 ECU common failure repair experience

      The Bosch M7 ECU has a common failure, the water temperature sensor ground connection is prone to burn off the circuit, the failure is result from two main reasons: 1. the water temperature sensor is damaged; 2. the water temperature sensor electric circuit short circuited. Repair the water temperature sensor electric circuit, then open the M7 ECU, There are two PINs for ground connection, use a electric wire connect the ground pin to centre to solve this problems