Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 2005 >> 3 L4-2.3L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Electronic Throttle Actuator >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Electronic Throttle Actuator: Testing and Inspection

ELECTRONIC THROTTLE CONTROL SYSTEM INSPECTION

Engine coolant temperature compensation inspection
1. Connect the WDS or equivalent to the DLC-2.
2. Access the following PIDs:
- ECT
- IAT
- RPM

3. Verify that the engine is cold, then start the engine.
4. Verify that the engine speed decreases as the engine warms up.
- If the engine speed does not decrease or decreases slowly, inspect the following:
- ECT sensor and related wiring harness

- Electronic throttle body and related wiring harness

Load compensation inspection
1. Start the engine and idle it.
2. Connect the WDS or equivalent to the DLC-2.
3. Verify that P0506, P0507, or P0511 is not displayed.
- If P0506, P0507 or P0511 are displayed, perform DTC inspection.

4. Access the RPM PID.

NOTE: Excludes temporary idle speed drop just after the loads are turned on.




5. Verify that the engine speed is within the specification under each load condition.
- If load condition is not as specified, inspect the following:
- A/C switch and related wiring harness
(See CLIMATE CONTROL UNIT INSPECTION.)

- Fan switch and related wiring harness
(See CLIMATE CONTROL UNIT INSPECTION.)
pro multis · About Operation CHARM