Mazda 6 Service Manual: No.9 abnormal shifting

No.8 does not shift to fourth gear (4gr)

No.10 frequent shifting

Other materials:

Mazda 6 Service Manual: Variable tumble control solenoid valve inspection
1. Remove the variable tumble control solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 2. Inspect airflow between the ports under the following conditions. If not as specified, replace the variable tumble control solenoid valve. If as specified, carry out the Circuit Open/Short ...

Mazda 6 Service Manual: Theft-deterrent control module inspection
1. Remove the theft-deterrent control module without disconnecting the connectors. 2. Measure the voltage at the theft-deterrent control module terminals as indicated below. 3. Disconnect the theft-deterrent control module connector before inspecting for continuity at terminals L, Q, S, T, a ...