DTC C1035:11 [EVP CONTROL UNIT]

id040251839700

DTC
C1035:11
Electric vacuum pump relay 1: short to ground
DETECTION CONDITION
•  Resistance between the EVP control unit terminal C circuit and ground is less than 10 m ohm.
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe function table”. (See DTC TABLE [EVP CONTROL UNIT].)
POSSIBLE CAUSE
•  Short to ground circuit in electric vacuum pump relay 1 circuit
•  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
VERIFY IF SNAPSHOT DATA IS AFFECTED BY OTHER RELATED DTCs OCCURRING
•  Using the M-MDS, perform the EVP control unit DTC inspection.
•  Is the DTC C101C:73 stored?
Yes
Go to the applicable DTC inspection.
(See DTC C101C:73 [EVP CONTROL UNIT].)
No
Go to the next step.
3
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 DTC inspection.
•  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.
4
VERIFY DTC REPEATABILITY
•  Switch the ignition ON (engine off).
•  Access the following EVP control unit PIDs using the M-MDS:
―  VP_MV
―  VP_PV
•  Access the simulation item VPS_FBK using the M-MDS.
•  Verify PID VP_MV and VP_PV when the electric vacuum pump is operated by simulation item VPS_FBK.
•  Are VP_MV and VP_PV PIDs within specification?
Specification:
VP_MV: Below 0.8 V (VPS_FBK On), 4.1—8.7 V (VPS_FBK Off)
VP_PV: 8.0—17.4 V (VPS_FBK On), 4.1—8.7 V (VPS_FBK Off)
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
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_MV
―  VP_PV
―  VPS_FBK
•  Drive the vehicle based on the service questions content and snapshot data driving conditions.
•  Are VP_MV and VP_PV PIDs within specification, while the vehicle is driven?
Specification:
VP_MV: Below 0.8 V (VPS_FBK On), 4.1—8.7 V (VPS_FBK Off)
VP_PV: 8.0—17.4 V (VPS_FBK On), 4.1—8.7 V (VPS_FBK Off)
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.].)
6
VERIFY DTC REPEATABILITY AND DETERMINE IF MALFUNCTION CAUSE IS EVP CONTROL UNIT
•  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.
•  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.
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.