Toyota Celica 2005 Repair Manual page 905

DI−705−1
4 Read PNP, REVERSE, 2ND and LOW signals.
L
ON
P
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
N
R
2
D
D07262
− AUTOMATIC TRANSAXLE (U240E)
When using TOYOTA hand−held tester:
PREPARATION:
(a) Remove the DLC3 cover.
(b) Connect a TOYOTA hand−held tester to the DLC3.
(c) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
CHECK:
Shift lever into the P, R, N, D, 2 and L positions, and read the
NSW, REVERSE, 2ND DRIVE and LOW signals on the TOYO-
TA hand−held tester.
OK:
Shift position
2
L
D
R
P, N
When not using TOYOTA hand−held tester:
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure voltage between terminals P, R, N, D, 2 and L of ECM
and body ground when the shift lever is shifted to the following
positions.
OK:
P−Body R−Body
Position
ground ground
P 9 − 14 V 0 V
R 0 V 9 − 14 V
N 0 V 0 V
D 0 V 0 V
2 0 V 0 V
L 0 V 0 V
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
OK Check and replace the ECM (See page IN−30).
904
Signal
2ND OFF → ON
LOW OFF → ON
DRIVE OFF → ON
REVERSE OFF → ON
NSW OFF → ON
N−Body D−Body 2−Body
ground ground ground
0 V 0 V 0 V
0 V 0 V 0 V
9 − 14 V 0 V 0 V
0 V 9 − 14 V 0 V
0 V 0 V 9 − 14 V
0 V 0 V 0 V
L−Body
ground
0 V
0 V
0 V
0 V
0 V
9 − 14 V