Toyota Camry Manual page 1922

DTC
CIRCUIT DESCRIPTION
When the idle switch is turned ON, a signal is sent to the ECU. The ECU uses this signal to correct the dis-
crepancy between the throttle valve position and the actuator position sensor value to enable accurate
cruise control at the set speed. If the idle switch is malfunctioning, problem symptoms also occur in the en-
gine, so also inspect the engine.
DTC No.
51 Short in idle signal circuit.
WIRING DIAGRAM
ECM
IDL
DIAGNOSTICS
51 Idle Signal Circuit
Detection Item
1
2
*
*
4
3
E7 E8
1
*
2
*
– CRUISE CONTROL SYSTEM
D Harness or connector between ECM and throttle position
sensor
D Throttle position sensor
D Harness or connector between cruise control ECU and ECM
D Cruise control ECU
L–R
: 5S–FE Engine
: 1MZ–FE Engine
Author :
Trouble Area
Cruise Control ECU
13
C15
IDL
Date :
DI–895
DI08S–10
I00284
1130