DTC 3: SAS Control Module Power Supply Circuit
WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
- Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Ensure battery voltage is 9 volts or more. If battery voltage is as specified, go to next step. If voltage is not as specified, inspect and repair battery and charging system as necessary.
- Remove driver-side front scuff plate and side trim. Remove fuse block without disconnecting connectors. Turn ignition switch to ON position. Measure voltage at fuse block connectors JB-09, terminal "B" (Black/Yellow wire) and connector JB-08, terminal "P" (Black/White wire). See Fig 1 & Figure . If voltage is more than 9 volts, go to next step. If voltage is less than 9 volts, repair wiring harness between battery and fuse block and go to step 4.
- Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Access and disconnect all SAS control module connectors. See SAS CONTROL MODULE under REMOVAL & INSTALLATION. Reconnect negative battery cable. Turn ignition switch to ON position. Measure voltage between ground and SAS control module connector terminals 2E and 2H. If voltage is more than 9 volts at each terminal, and if DTC 3 was retrieved as a present malfunction DTC, replace SAS control module and go to next step. If voltage is more than 9 volts at each terminal, and if DTC 3 was retrieved as a past malfunction DTC, go to next step. If voltage is less than 9 volts, replace air bag wiring harness between fuse block and SAS control module and go to next step.
- Disconnect negative battery cable. Reconnect all connectors and install previously removed components. Reconnect negative battery cable. Clear past malfunction DTCs. See CLEARING PAST MALFUNCTION DTCS under DIAGNOSTICS. Perform system operation check. See SYSTEM OPERATION CHECK . If AIR BAG warning light operates normally, trouble shooting is complete. If AIR BAG warning light does not operate normally, reconfirm malfunction symptoms.