Toyota Celica 2005 Repair Manual page 578

2 Check for open in harness or ECM.
Mass Air
Flow Meter
4
2
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
(a)
ECM
(b)
(c)
THA
(d)
E2
CHECK:
Read the temperature value on the OBD II scan tool or hand−
held tester.
OK:
Mass Air
Flow Meter
A19549
OK
− ENGINE (2ZZ−GE)
Disconnect the mass air flow meter connector.
Connect the sensor wire harness terminals together.
Turn the ignition switch ON.
When using hand−held tester, enter the following menus:
DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL
DADA / INTAKE AIR.
Temperature value: 140°C (284°F) or more
Confirm good connection at sensor. If OK, re-
place mass air flow meter.
577
DI−379