A84947
Engine Room R/B:
EFI Fuse
G34805
ECM Connector
E24
+B
+B
05--158
--
DIAGNOSTICS
ECD SYSTEM (1ND--TV)
COROLLA Supplement (RM1129E)
2
CHECK HARNESS AND CONNECTOR(ECM -- EFI FUSE, EFI FUSE -- BATTERY)
(a)
Check the harness and connectors between the EFI fuse
and ECM.
(1)
Remove the EFI fuse from the engine room R/B.
(2)
Disconnect the E24 ECM connector.
(3)
Check the resistance.
Standard (Check for open):
Tester Connection
Specified Condition
EFI fuse (2) -- +B (E24--1)
Below 1
Ω
EFI fuse (2) -- +B (E24--61)
Below 1
Ω
Standard (Check for short):
Tester Connection
Specified Condition
EFI fuse (2) or +B (E24--1) -- Body ground
10 k
Ω
or higher
EFI fuse (2) or +B (E24--61) -- Body ground
10 k
Ω
or higher
(4)
Reinstall the EFI fuse.
(5)
Reconnect the ECM connector.
(b)
Check the harness and connector between the EFI fuse
and battery.
(1)
Remove the EFI fuse from the engine room R/B.
(2)
Disconnect the positive battery cable.
(3)
Check the resistance.
Standard (Check for open):
Tester Connection
Specified Condition
Positive battery cable terminal -- EFI fuse (1)
Below 1
Ω
Standard (Check for short):
Tester Connection
Specified Condition
Positive battery cable terminal or EFI fuse (1) -- Body ground
10 k
Ω
or higher
(4)
Reinstall the EFI fuse.
(5)
Reconnect the battery cable.
NG
REPAIR
OR
REPLACE
HARNESS
OR
CONNECTOR
OK
3
INSPECT GENERATOR ASSY
HINT:
S
If +B voltage drop is caused by generator malfunctions, the charge lamp illuminates.
S
If the voltage at the terminal of the generator is more than 17 V, the generator malfunctions.
NG
REPAIR OR REPLACE GENERATOR ASSY
OK
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E