05--264
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DIAGNOSTICS
MULTI--MODE MANUAL TRANSMISSION SYSTEM
COROLLA Supplement (RM1129E)
DTC
P0812/67 REVERSE INPUT CIRCUIT (OPEN)
DTC
P0812/68 REVERSE INPUT CIRCUIT (SHORT)
CIRCUIT DESCRIPTION
Receiving the signal from the back up lamp switch, the transmission control ECU detects the reverse signal.
Refer to DTC P0905/59 on page 05 -- 291
DTC P0915/49 on page 05 -- 313 .
DTC No.
DTC Detection Condition
Trouble Area
P0812/67
P0812/68
S
When the following condition lasts for a certain period, the
transmission control ECU detects these DTCs.
The gear position that the transmission control ECU detects
from the shift sensor and the select sensor differs from the
signal from the back up lamp switch.
S
The transmission control ECU detects the following condi-
tions:
(a) (1) Shift and select stroke sensors send R position signal to
transmission control ECU.
(2) Back up lamp switch is OFF for 0.5 seconds.
(b) (1) Shift and select stroke sensors send non--R position
signal to transmission control ECU.
(2) Back up lamp switch is ON for 0.5 seconds.
S
Shift stroke sensor
S
Select stroke sensor
S
Back up lamp switch
S
Open or short in back up lamp switch circuit
S
Transmission control ECU
05L4G--02
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E