A85520
1
2
3
2
3
4
4
1
G34805
ECM Connector
E24
GREL
A85521
--S
+S
3
4
1
2
--
DIAGNOSTICS
ECD SYSTEM (1ND--TV)
05--115
COROLLA Supplement (RM1129E)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using an intelligent tester ll. Freeze frame data record the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction oc-
curred.
1
INSPECT GLOW PLUG RELAY ASSY
(a)
Remove the glow plug relay.
(b)
Check the glow plug relay resistance.
Standard:
Tester Connection
Specified Condition
3 -- 4
10 k
Ω
or higher
3 -- 4
Below 1
Ω
(When battery voltage applied to terminals 1 and 2)
(c)
Reinstall the glow plug relay.
NG
REPLACE GLOW PLUG RELAY ASSY
OK
2
CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY -- ECM)
(a)
Disconnect the E24 ECM connector.
(b)
Remove the glow plug relay.
(c)
Check the resistance.
Standard (Check for open):
Tester Connection
Specified Condition
+S (Glow plug relay terminal 2) -- GREL (E24--81)
Below 1
Ω
--S (Glow plug relay terminal 1) -- Body ground
Below 1
Ω
Standard (Check for short):
Tester Connection
Specified Condition
GREL (E24--81) -- Body ground
10 k
Ω
or higher
(d)
Reconnect the ECM connector.
(e)
Reinstall the glow plug relay.
NG
REPAIR
OR
REPLACE
HARNESS
OR
CONNECTOR
OK
To Alphabetical Index
To Sub Index
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E