Toyota Celica 2005 Repair Manual page 1266

3 Check control switch.
4
OK
4
Check harness and connector between cruise control ECU and cruise control switch,
cruise control switch and body ground (See page IN−30).
OK
5 Input signal check (See step 1).
NG
Check and replace cruise control ECU (See
page IN−30).
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
3
(a)
(b)
CHECK:
Measure the resistance between terminal 3 and 4 of the control
switch connector when control switch is operated.
N16045
NG
NG
OK
− CRUISE CONTROL SYSTEM (1ZZ−FE)
Remove the steering wheel center pad.
Disconnect the control switch connector.
Switch position
Neutral
RES/ACC
SET/COAST
CANCEL
Replace control switch.
Repair or replace harness or connector.
Wait and see.
1265
DI−1065
Resistance (Ω)
∞ (No continuity)
210 − 270
570 − 690
1390 − 1690