Mazda 323 1988 Workshop Manual page 216

4A
TROUBLESHOOTING WITH SST
No. 10 Code illumination (Intake Air Therm0 Sensor)
Repair or replace connector
Is resistance of intake air thermo sensor
(in air flow meter) OK?
Resistance:
Terminal
Ez .+ THA
Resistance
-20% (-4°F) : 14.6-17.6 kn
20% (66°F) : 2.21-2.69 kn
60% (14OV): 0.49-0.67 k9
IYES
Is there continuity between intake air thermo
sensor (in air flow meter) and engine control unit?
Intake air thermo sensor
Engine control
(in air flow meter) unit
THA (BrY wire) 2J
Ez (LY wire) 2c
NO
Replace air flow meter
NO
--
PC: Open circuit in wiring harness from intake air ther-
mo sensor (in air flow meter) to engine control unit
I
YES
Are engine co,ntrol unit (2J) a
tages OK? (Refer to page 4A-61,62)
PC: Short cirouit in wiring harness
PC: Engine control unit malfunction
4A-16
323 Revised 10187