VSA System
DTC 83: PCM Communication Error1. Turn the ignition switch to ON (II).
2. Check for DTCs with the HDS.
Is DTC 86 indicated with OTC 83 at the same time?
YES - Do the DTC 86 troubleshooting.
NO - Go to step 3.
3. Check for the fuel and emissions systems DTCs with the HDS.
Are any DTCs indicated?
YES - Do the applicable troubleshooting for the PCM.
NO - Go to step 4.
4. Clear the DTC with the HDS.
5. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
6. Check for DTCs with the HDS.
Is DTC 83 indicated?
YES - Check for loose terminals in the VSA modulator-control unit 46P connector. Check for a loose connection at G202. If necessary, substitute a known-good VSA modulator-control unit and retest.
NO - Intermittent failure, the system is OK at this time. Check for loose terminals between the PCM connector A (44P), and the VSA modulator-control unit 46P connector. Check for a loose connection at G202. Refer to intermittent failures troubleshooting.