EVP CONTROL UNIT INSPECTION


id041100151900

1.  Disconnect the EVP control unit connector. (See EVP CONTROL UNIT REMOVAL/INSTALLATION [L.H.D.].) (See EVP CONTROL UNIT REMOVAL/INSTALLATION [R.H.D.].)

2.  Measure the voltage or continuity of the EVP control unit wiring harness-side connector using a tester.

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Terminal Voltage Table (Reference)

Terminal

Connected to

Measured item

Test condition or measured terminal

Specification (Reference)

Inspection item

A
Battery (without i-ELOOP)
Voltage
Under any condition
B+
•  Inspect the battery.
•  Inspect related wiring harness.
DC-DC converter (with i-ELOOP)
Voltage
Under any condition
B+
•  Inspect the DC-DC converter.
•  Inspect related wiring harness.
B
C
Electric vacuum pump
Continuity
EVP control unit terminal C—electric vacuum pump terminal B
Continuity detected
•  Inspect the electric vacuum pump.
•  Inspect related wiring harness.
D
E
Electric vacuum pump
Continuity
EVP control unit terminal E—electric vacuum pump terminal A
Continuity detected
•  Inspect the electric vacuum pump.
•  Inspect related wiring harness.
F
G
Ground point
Continuity
EVP control unit terminal G—ground point
Continuity detected
•  Inspect related wiring harness.
H
I
J
K
L
M
N
O
P
IG1 relay
Voltage
Ignition off
1.0 V or less
•  Inspect the IG1 relay.
•  Inspect related wiring harness.
Ignition ON (engine off)
B+
Q
R
S
T
U
V
W
X
Y
Vacuum sensor 1
Continuity
EVP control unit terminal Y—vacuum sensor 1 terminal B
Continuity detected
•  Inspect the vacuum sensor 1.
•  Inspect related wiring harness.
Z
CAN related module
Because this terminal is for communication, determination using terminal voltage inspection is not possible. Perform the inspection using the DTC inspection.
AA
Vacuum sensor 1
Continuity
EVP control unit terminal AA—vacuum sensor 1 terminal A
Continuity detected
•  Inspect the vacuum sensor 1.
•  Inspect related wiring harness.
AB
AC
Vacuum sensor 1
Continuity
EVP control unit terminal AC—vacuum sensor 1 terminal C
Continuity detected
•  Inspect the vacuum sensor 1.
•  Inspect related wiring harness.
AD
CAN related module
Because this terminal is for communication, determination using terminal voltage inspection is not possible. Perform the inspection using the DTC inspection.