S07516
BE6653
A02519
A02274
SST
VAF
E2
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--187
4 Check voltage between terminals VAF and E2 of engine engine ECU connector.
PREPARATION:
(a)
Reconnect the variable resistor connector.
(b)
Remove the instrument panel under cover.
(c)
Turn the ignition switch ON.
CHECK:
Measure voltage between terminals VAF and E2 of engine ECU
connector while slowly turning the idle mixture adjusting screw
first fully counterclockwise and then fully clockwise, using SST.
OK:
Voltage changes smoothly from 0 V to about 5 V, i.e.
does not suddenly jump up to 5 V down to 0 V.
OK
Check and replace engine ECU.
NG
5 Check for open and short in harness and connector between variable resistor
and engine ECU
NG
Repair or replace harness or connector.
OK
Check and replace engine engine ECU.
CLICK HERE TO VIEW CHAPTER INDEX
Pages From Supplement
3RZ-F,3RZ-FE