Toyota Camry Manual page 314

INSPECTION PROCEDURE
Check voltage between terminal P of ECM connector and body ground.
Check pattern select switch.
Check harness and connector between ECM and pattern select switch,
pattern select switch, pattern select switch and battery (See page
Check and replace ECM.
AUTOMATIC TRANSAXLE –
The ECU uses the normal pattern signal if the
power signal is not input.
Disconnect pattern select switch connector.
(See BO–section)
Measure resistance between terminals 3 and 6 of
pattern select switch connector when the select
switch is set to PWR and NORM positions.
TROUBLESHOOTING
Turn ignition switch ON.
Measure voltage between terminal P of ECM con–
nector and body ground when the pattern select
switch is set to the PWR (POWER) position and
NORM (NORMAL) position.
Pattern select switch
PW R
NORM
Proceed to next circuit inspection shown
on matrix chart (See page AX2–81).
Pattern
0 Q (continuity)
PWR
^ 0 (open)
NORM
Replace pattern select switch.
Repair or replace harness or connector.
AX2–127
Voltage
10–14 V
Below 1 V
Resistance
IN–31
).