Toyota 1 MZ–FE Manual page 409

Ignition system
Injector
Fuel line pressure
EG R
Compression pressure
Valve clearance not to specification
Valve timing
Mass air flow meter
Engine coolant temp. sensor
Open or short in knock sensor 1 circuit.
Knock sensor 1 (looseness)
ECM
Open or short in knock sensor 2 circuit.
Knock sensor 2 (looseness)
ECM
Open or short in crankshaft position sensor circuit.
Crankshaft position sensor
Starter
ECM
Mechanical system malfunction
(skipping teeth of timing belt, belt stretched)
ECM
Open or short in camshaft position sensor circuit.
Camshaft position sensor
Starter
ECM
EGR valve stuck closed
Short in EGR VSV circuit
Open in EGR gas temp. sensor circuit
EGR hose disconnected
ECM
1MZ–FE ENGINE
Trouble Area
– DIAGNOSTIC TROUBLE CODE CHART
MIL
EG2–409
See Page
Memory
EG2–493
EG2–499
EG2–499
EG2–503
EG2–507
EG2–508
EG2–512