DTC U2005-68: Pcm Communication Error (Vehicle Speed Signal)
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| System malfunction location |
PCM communication error (vehicle speed signal) |
| Detection condition |
- The SAS control module receives vehicle speed signal error from the PCM for 5 s or more
with the ignition switched ON (engine off or on).
|
| Fail-safe |
- |
| Possible cause |
- PCM malfunction
- SAS control module malfunction
|
| System wiring diagram |
- |
| Step |
Inspection |
Action |
| 1 |
VERIFY SAS CONTROL MODULE DTCs AGAIN
|
Yes |
Go to the next step. |
| No |
Go to Step 5. |
| 2 |
VERIFY PCM DTCs
|
Yes |
Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5]
.) |
| No |
Go to the next step. |
| 3 |
PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS PCM
|
Yes |
Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5]
.) |
| No |
Go to Step 5. |
| 4 |
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
|
Yes |
Replace the SAS control module, then go to the next step. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM]
.) |
| No |
Go to the next step. |
| 5 |
VERIFY IF OTHER DTCs DISPLAYED
- Are any other DTCs displayed?
|
Yes |
Repair the malfunctioning part according to the applicable DTC troubleshooting. |
| No |
DTC troubleshooting completed. |