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A98509
Fuel Metering Unit
Component Side:
G34823
M6
Wire Harness Side:
Front View
Fuel Metering Unit Connector
G34806
E23
ECM C onnector
PCV
05 -- 102
--
DIAGNOSTICS
ECD SYSTEM (1ND -- TV)
COROLLA Supplement (RM1129E)
2 I NSPECT I NJECTION OR SUPPLY PUMP ASSY (FUEL M ETERING UNIT)
(a) Disconnect the M6 fuel metering unit c onnector.
(b) Measure the resistance between the terminals of the fuel
metering unit v alve.
Standard: 2.60 to 3.15
Ω
at 20
_
C (68
_
F)
(c) Reconnect the fuel metering unit c onnector.
NG REPLACE INJECTION OR SUPPLY PUMP ASSY
OK
3 CHECK HARNESS AND CONNECTOR(FUEL M ETERING UNIT -- ECM)
(a) Disconnect the M6 fuel metering unit c onnector.
(b) Disconnect the E23 ECM connector.
(c) Check the resistance.
Standard (Check for open):
Tester Connection
Specified Condition
PCV (E23 -- 12) -- (M6 -- 2)
Below 1
Ω
Standard (Check for short):
Tester Connection
Specified Condition
PCV (E23 -- 12) or (M6 -- 2) -- B ody ground
10 k
Ω
or higher
(d) Reconnect the fuel metering unit c onnector.
(e) Reconnect ECM connector.
NG
REPAIR
OR
REPLACE
HARNESS
AND
CONNECTOR
OK
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E