A03004
ON
VTA
E2
(--)
(+)
DI--38
--
DIAGNOSTICS
ENGINE (1RZ--E)
INSPECTION PROCEDURE
HINT:
If diagnostic trouble codes ”22” (water temperature sensor circuit), ”24” (intake air temperature sensor circuit)
”31” (vacuum sensor circuit) and ”41” (throttle position sensor circuit) are output simultaneously, E2 (sensor
ground) may be open.
1 Check voltage between terminals VTA and E2 of engine ECU connector.
PREPARATION:
(a) Remove the glove compartment.
(b)
Turn ignition switch ON.
(c)
Apply vacuum to the throttle opener.
CHECK:
Measure voltage between terminals VTA and E2 of engine ECU
connector when the throttle valve is opened gradually from the
closed condition.
OK:
Throttle Valve
Voltage
Fully closed
0.3 -- 1.0 V
Fully open
2.7 -- 5.2 V
HINT:
The voltage should increase steadily in proportion to the throttle
valve opening angle.
OK
Check for problem symptoms table
NG
CLICK HERE TO VIEW CHAPTER INDEX
Pages From Supplement
3RZ-F,3RZ-FE