Mazda 6 Service Manual: No.17 excessive shift shock from n to d or n to r position/range

No.16 judder upon torque converter clutch (tcc) operation

No.18 excessive shift shock is felt when upshifting and downshifting

Other materials:

Mazda 6 Service Manual: Dtc b1318
Caution When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness connector, the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM INSPECTION.) Diagnostic procedure ...

Mazda 6 Service Manual: Cruise actuator inspection
1. Disconnect the cruise actuator connector. 2. Measure the voltage, continuity and resistance at the cruise actuator terminals as indicated below. If not as specified, inspect the parts listed under Action. If the parts and wiring harnesses are okay but the system still does not work pr ...