D32458
Connector Front View:
MDSW
GND
D32518
T16
Transmission Shift Main Switch
MDSW
GND
Connector Front View:
D32442
M8
Transmission Control ECU
Wire Harness View:
MDSW
--
DIAGNOSTICS
MULTI -- MODE MANUAL TRANSMISSION SYSTEM
05 -- 281
COROLLA Supplement (RM1129E)
INSPECTION PROCEDURE
1 I NSPECT TRANSMISSION SHIFT M AIN SWITCH
(a) Disconnect the shift main s witch c onnector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Symbol (Terminal No.)
Shift position
Specified v alue
MDSW (T16 -- 4) --
GND (T16 -- 8 )
R, N, E s ide
10 k
Ω
or higher
MDSW (T16 -- 4) --
GND (T16 -- 8 )
M, +, -- side
Below 1
Ω
NG REPLACE TRANSMISSION SHIFT MAIN
OK
2 CHECK HARNESS AND CONNECTOR (TRANSMISSION SHIFT M AIN SWITCH --
BODY GROUND, TRANSMISSION CONTROL ECU)
(a) Disconnect the M8 connector of the transmission control
ECU.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Symbol (Terminal No.)
Condition
Specified v alue
MDSW (T16 -- 4) --
MDSW (M8 -- 10)
Always
Below 1
Ω
GND (T16 -- 8 ) --
Body ground
Always
Below 1
Ω
MDSW (T16 -- 4) --
Body ground
Always
10 k
Ω
or higher
Result:
NG
A
OK (When troubleshooting according to the PROBLEM
SYMPTOM TABLE)
B
OK (When troubleshooting according to the DTC chart)
C
B
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
C
REPLACE TRANSMISSION CONTROL ECU
ASSY
A
REPAIR OR REPLACE HARNESS OR CONNECTOR
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E