Toyota Corolla 2002 Repair Manual Supplement page 216

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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
3
1
OK
2 CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY - - ECM)
GREL
ECM Connector
OK
COROLLA Supplement (RM1129E)
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DIAGNOSTICS
4
3 4
1 2
2
A85520
E24
G34805
3
--S
1
2
+S
4
A85521
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E
-- ECD SYSTEM (1ND--TV)
(a) Remove the glow plug relay.
(b) Check the glow plug relay resistance.
Standard:
Tester Connection
3 -- 4
3 -- 4
(When battery voltage applied to terminals 1 and 2)
(c) Reinstall the glow plug relay.
NG REPLACE GLOW PLUG RELAY ASSY
(a) Disconnect the E24 ECM connector.
(b) Remove the glow plug relay.
(c) Check the resistance.
Standard (Check for open):
Tester Connection
+S (Glow plug relay terminal 2) -- GREL (E24--81)
--S (Glow plug relay terminal 1) -- Body ground
Standard (Check for short):
Tester Connection
GREL (E24--81) -- Body ground
(d) Reconnect the ECM connector.
(e) Reinstall the glow plug relay.
NG REPAIR OR
CONNECTOR
TO MODEL INDEX
Specified Condition
10 kΩ or higher
Below 1 Ω
Specified Condition
Below 1 Ω
Below 1 Ω
Specified Condition
10 kΩ or higher
REPLACE HARNESS
05- -115
OR