2. Perform the meter self-test procedure. Indicator «MIL» flashing?
- YES - go to step 3.
- NO - Replace gauge control module (tachometer) known to be good and recheck. If the alarm circuit «MIL» defective, replace the original instrument cluster control module (tachometer).
3. Connect the HDS to the data port (DLC).
4. Check the SCS in «DATA LIST» («DATA LIST») with HDS.
Is the closure displayed on the screen?
- YES - go to step 5.
- NO - Update the ECM if it does not have the latest software, or temporarily substitute a known-good ECM, then recheck. If no problem occurs with a known-good ECM, replace the removed ECM.
5. Turn the ignition key to position «OFF».
6. Disconnect the 44P connector A of the ECM, then disconnect the HDS.
7. Check continuity between ECM connector terminal A31 and «weight» body.
Is the connection continuous?
- YES - Repair short in the wire between the ECM/PCM (A31) and blocks SRS, DLC.B
- NO - Update the ECM if it does not have the latest software, or temporarily substitute a known-good ECM, then recheck. If no problem occurs with a known-good ECM, replace the removed ECM.