Toyota AVENSIS 2000 Supplement Manual page 238

DTC P1730
CIRCUIT DESCRIPTION
This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal (NC)
and the input turbine speed sensor signal (NT), the Engine and ECT ECU detects the shift timing of the gears
and appropriately controls the engine torque and hydraulic pressure in response to various conditions, thus
performing smooth gear shifting.
DTC No.
The Engine and ECT ECU detects conditions (a), (b), (c) and
(d) continuity for 5 secs or more.
(1–trip detection logic)
P1730 (a) IG SW: ON
(b) Neutral start switch: Except P, N range
(c) T/M input shaft rpm: 300 rpm or less
(d) T/M output shaft rpm: 1,000 rpm or more
WIRING DIAGRAM
2
C18
Counter Gear
Speed Sensor
1
AVENSIS/CORONA SUP (RM781E)
DIAGNOSTICS
NC Revolution Sensor Circuit Malfunction
(Counter Gear Speed Sensor)
DTC Detecting Condition
W
B
– AUTOMATIC TRANSAXLE (U240E)
S Open or short in counter gear (NC) speed sensor circuit
S Counter gear (NC) speed sensor
S Engine and ECT ECU
4
E15
10
E15
Trouble Area
Engine and ECT ECU
+
NC
–
NC
DI–107
DI6RX–03
D07935