A81701VSV is ON VSV is OFFE
F E
F Air
Air
A76903
E01 (
−)
SCV (+)
ECM Connector
E13
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −211
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
HINT:
S Read freeze frame data using the hand−held tester . Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the
vehicle was running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or
rich, and other data from the time the malfunction occurred.
1 PERFORM ACTIVE TEST BY HAND −HELD TESTER(VSV FOR IACV)
(a) Disconnect the vacuum hose from the VSV for IACV.
(b) Turn the ignition switch to ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / ACTIVE
TEST / SCV VSV (press the right or left button).
(d) Check the VSV for IACV operation when it is operated by the hand −held tester.
Standard:
Tester OperationSpecified Condition
VSV is ONAir from port E flows out through port F
VSV is OFFAir does not flow from port E to port F
NG Go to step 2
OK
CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)
2 INSPECT VACUUM SWITCHING VALVE ASSY NO. 1(VSV FOR IACV)
(See page 12− 3)
NG REPLACE VACUUM SWITCHING VALVE ASSY
NO.1(VSV FOR IACV)
OK
3 INSPECT ECM(SCV VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the specified terminals of the E13 ECM connector.
Standard:
Tester ConnectionSpecified Condition
SCV (E13 −5) −E01 (E13 −7)9to14V
NG Go to step 4
OK
REPLACE ECM (See page 10− 65 of Pub. No. RM 1018E AVENSIS)
