DTC U3000:4B [EVP CONTROL UNIT]

id040251840500

DTC
U3000:4B
EVP control unit: high internal temperature
DETECTION CONDITION
•  A circuit board temperature inside the EVP control unit of 130 degrees C {266 degrees F} or more is detected.
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe function table”. (See DTC TABLE [EVP CONTROL UNIT].)
POSSIBLE CAUSE
•  Continuous use of electric vacuum pump under high engine compartment temperature
•  Temperature sensor (built-in EVP control unit) malfunction
•  EVP control unit malfunction
SYSTEM WIRING DIAGRAM
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Diagnostic Procedure

Step

Inspection

Action
1
RECORD SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (fuel system related) on the repair order.
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Go to the next step.
2
VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY OTHER RELATED DTCs OCCURRING
•  Using the M-MDS, perform the EVP control unit DTC inspection.
•  Is any other DTC or pending code stored?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [EVP CONTROL UNIT].)
No
Go to the next step.
3
VERIFY DTC REPEATABILITY
Note
•  When clearing the DTC, the snap shot data is also cleared at the same time. Snap shot data is recorded if it is not recorded in Step 1.
•  Using the M-MDS, clear the DTC from the EVP control unit.
•  Switch the ignition ON (engine off).
•  Using the M-MDS, perform the EVP control unit DTC inspection.
•  Are any DTCs present?
Yes
DTC U3000:4B is displayed:
•  Replace the EVP control unit, then go to the next step.
DTC other than U3000:4B is displayed:
•  Go to the applicable DTC inspection.
No
DTC troubleshooting completed.
Explain to the customer that there are no malfunctions with the vehicle based on the contents of the servicing.
4
VERIFY NO DTC IS PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [EVP CONTROL UNIT].)
No
DTC troubleshooting completed.