Dtc P0118 [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
INSPECT ECT SENSOR SIGNAL
CIRCUIT FOR SHORT TO GND
• Turn the ignition switch off.
4
• Inspect for continuity between ECT
sensor terminal A (wiring harness-side) and
body GND.
• Is there continuity?
INSPECT ECT SENSOR
• Inspect the ECT sensor.
5
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION
• 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
P0117 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 P0118
Downloaded from
Yes
No Go to the next step.
Yes
[Z6].)
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 P0118 [Z6]

ECT sensor circuit high input
https://carmanualshub.com/
Repair or replace the wiring harness for a
possible short to GND, then go to Step 7.
Replace the ECT sensor, then go to Step 7.
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR REMOVAL/INSTALLATION
[Z6].)
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].)
- automotive repair manuals website
[Z6].)
B3E010200100W07