Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P003400

Condition
The Engine control module (ECM) uses a relief valve to reduce noises that may occur when the accelerator pedal is released quickly.
The engine control module (ECM) checks the control signal for the relief valve.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Control signal is too low.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
- Battery voltage higher than 10.5 V.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Possible source
- The signal cable is short-circuited to ground.
- Damaged relief valve.

Fault symptom[s]
- Noise from engine compartment
- When the accelerator pedal is released.