DTC C1035:13 [EVP CONTROL UNIT]

id040251839900

DTC
C1035:13
Electric vacuum pump relay 1: stuck OFF
DETECTION CONDITION
•  EVP control unit terminal C voltage deviates from the 90% to 110% battery voltage range for a continuous 0.2 s when electric vacuum pump relay 1 is turned on.
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe function table”. (See DTC TABLE [EVP CONTROL UNIT].)
POSSIBLE CAUSE
•  Electric vacuum pump relay 1 (built-into EVP control unit) stuck OFF
•  Electric vacuum pump relay 1 drive monitor circuit malfunction
•  EVP control unit malfunction
SYSTEM WIRING DIAGRAM
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Diagnostic Procedure

Step

Inspection

Action
1
RECORD SNAPSHOT DATA TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the snapshot data on the repair order.
—
Go to the next step.
2
DETERMINE WHETHER MALFUNCTION IS PAST OR PRESENT
Note
•  When clearing the DTC, the snapshot data is also cleared at the same time. Snapshot 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 ODDTC self test.
•  Is the same Pending DTC present?
Yes
Replace the EVP control unit, then go to Step 7.
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
No
Go to the next step.
3
VERIFY DTC REPEATABILITY
•  Switch the ignition ON (engine off).
•  Access the following EVP control unit PIDs using the M-MDS:
―  VP_PV
―  VPR1_V
―  VPWR
•  Access the simulation item VPS_FBK using the M-MDS.
•  Compare the values of VP_PV and VPWR with the PID VPR1_V verified when the electric vacuum pump was operated by simulation item VPS_FBK.
•  Is VP_PV within the 90% to 110% VPWR range with PID VPR1_V turned on?
Yes
Go to the next step.
No
Replace the EVP control unit, then go to Step 7.
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
4
DRIVE VEHICLE THEN VERIFY DTC REPEATABILITY BASED ON SERVICE QUESTIONING RESULTS AND SNAPSHOT DATA
•  Switch the ignition ON (engine off).
•  Access the following EVP control unit PIDs using the M-MDS:
―  VP_PV
―  VPR1_V
―  VPWR
•  Drive the vehicle based on the service questions content and snapshot data driving conditions.
•  Compare the values of VP_PV and VPWR with the PID VPR1_V verified when the VPR1_V PID is On.
•  Is VP_PV within the 90% to 110% VPWR range?
Yes
Go to the next step.
No
Replace the EVP control unit, then go to Step 7.
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
5
VERIFY DTC REPEATABILITY AND DETERMINE IF MALFUNCTION CAUSE IS EVP CONTROL UNIT DATA
•  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 ODDTC self test.
•  Is the same Pending DTC present?
Yes
Replace the EVP control unit, then go to the next step.
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
No
DTC troubleshooting completed.
Explain to the customer that there are no malfunctions with the vehicle based on the contents of the servicing.
6
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Using the M-MDS, clear the DTC from the EVP control unit.
•  Using the M-MDS, perform the EVP control unit DTC inspection
•  Is the same Pending DTC present?
Yes
Repeat the inspection from Step1.
If the malfunction recurs, replace the EVP control unit, then go to the next step.
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].)
(See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)
No
Go to the next step.
7
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.