Toyota Celica 2005 Repair Manual page 1552

E2
THA
Air
2005 CELICA (RM1131U)
INSPECTION
Ohmmeter
1.
Using an ohmmeter, measure the resistance between terminals
THA and E2.
B06674
If the resistance is not as specified, replace the MAF meter.
2.
VG E2G
(a)
(b)
(c)
Voltmeter
(d)
If operation is not as specified, replace the MAF meter.
B06675
(e)
(f)
SFI − MASS AIR FLOW (MAF) METER
INSPECT MAF METER RESISTANCE
Resistance:
Terminals
THA − E2
THA − E2
THA − E2
INSPECT MAF METER OPERATION
Connect the MAF meter connector.
Turn the ignition switch to ON.
Using a voltmeter, connect the positive (+) tester probe to
terminal VG, and negative (−) tester probe to terminal
E2G.
Blow air into the MAF meter, and check that the voltage
fluctuates.
Turn the ignition switch LOCK.
Disconnect the MAF meter connector.
1551
Resistance
13.6 − 18.4 kΩ
2.21 − 2.69 kΩ
0.49 − 0.67 kΩ
SF−31
FI0M8−16
Temperature
−20°C (−4°F)
20°C (68°F)
60°C (140°F)