D32440
Wire Harness View:
M9
CAN -- CAN+
D32444
50
µ
s/DIV
1V/DIV
←
GND
--
DIAGNOSTICS
MULTI -- MODE MANUAL TRANSMISSION SYSTEM
05 -- 341
COROLLA Supplement (RM1129E)
6 I NSPECT TRANSMISSION CONTROL ECU ASSY
(a) Turn the ignition switch on.
(b) Check the waveform between terminals CAN+ and CAN --
of the transmission control ECU.
OK: The correct waveforms are as shown on the left.
HINT:
Gauge set: 1 V/DIV, 50
µ
s/DIV
NG
REPLACE ECM
OK
REPLACE TRANSMISSION CONTROL ECU ASSY
OK
GO TO VSC SYSTEM
(Refer to COROLLA Repair Manual Pub. No. RM925E on page 05 -- 662)
If the problem reoccurs even after replacement, replace the ECM.
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E