Toyota 1 MZ–FE Manual page 411

EGR valve stuck open
EGR VSV open malfunction
Open in EGR VSV circuit
Short in EGR gas temp. senor circuit
ECM
Three–way catalytic converter
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
Open or short in vehicle speed sensor circuit.
Vehicle speed sensor
Combination meter
ECM
IAC valve is stuck or closed
Open or short in IAC valve circuit
Air conditioner idle up VSV
Air intake (hose loose)
Open in closed throttle position switch circuit.
Closed throttle position switch
ECM
*1.... MIL does not light up
O .... MIL lights up
O .... MIL lights up, 0/D OFF indicator light blinks
O
*2.... MIL lights up only on USA specification vehicles.
1MZ–FE ENGINE
Trouble Area
– DIAGNOSTIC TROUBLE CODE CHART
MIL*1
EG2–411
See Page
Memory
EG2–527
EG2–534
EG2–537
EG2–541
EG2–546