- If the DTC exists, diagnose the applicable DTC. (See DTC TABLE.)
- If the DTC does not exist, MIL does not illuminate, and HOLD indicator light flashes, diagnose the applicable symptom troubleshooting. (See SYMPTOM TROUBLESHOOTING ITEM TABLE.)

* :Malfunction indicator lamp (MIL), HOLD indicator light
Automatic transaxle on-board diagnostic functionMazda 6 Service Manual: Abs (abs/tcs) hu/cm inspection
1. Disconnect the negative battery cable.
2. Connect the SST between the ABS (ABS/TCS) HU/CM and harness
connector with the ignition switch off.
3. Attach the tester leads to the SST and inspect voltage referring
the table below.
Terminal Voltage Table (Reference)
(Engine is idling, and co ...
Mazda 6 Service Manual: Curtain air bag module removal/installation
Warning
Handling the air bag module improperly can accidentally deploy the air bag
module, which may seriously injure you. Read AIR BAG SYSTEM SERVICE WARNINGS
before handling the air bag module. (See SERVICE WARNINGS.)
1. Turn the ignition switch to LOCK position.
2. Disconnect the nega ...