Dtc P0328 [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Turn the ignition switch off.
• Inspect for continuity between KS terminal
A (wiring harness-side) and body GND.
• Is there continuity?
INSPECT KS
• Inspect the KS.
5
(See KNOCK SENSOR (KS) INSPECTION
[Z6].)
• Is there any malfunction?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
6
• Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
• Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0327 COMPLETED
• Make sure to reconnect all disconnected
connectors.
7
• Clear the DTC from the PCM memory
using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR
PROCEDURE".
8
(See AFTER REPAIR PROCEDURE
• Are any DTCs present?
DTC P0328
DETECTION
CONDITION
Downloaded from
No Go to the next step.
Yes
No Go to the next step.
Yes
No Go to the next step.
Yes
No Go to the next step.
Yes
[Z6].)
No DTC troubleshooting completed.

DTC P0328 [Z6]

• The PCM monitors the input signal from the KS when the engine is running.
If the input voltage at PCM terminal 2BA is more than 3.75 V, the PCM
determines that the KS circuit has a malfunction.
Diagnostic support note
https://carmanualshub.com/
Replace the KS, then go to Step 7.
(See KNOCK SENSOR (KS)
REMOVAL/INSTALLATION
Repair or replace the terminal, then go to the
next step.
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION
Go to the applicable DTC inspection.
(See DTC TABLE [Z6].)
KS circuit high input
- automotive repair manuals website
[Z6].)
[Z6].)
B3E010200300W04