
Vehicle exteriorHorn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm
sounding state, the main body ECU (driver side junction block assembly) transmits
a signal to cause the horn to sound at intervals of 0.4 seconds.
WIRING DIAGRAM
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Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT WHEEL LH
2. REMOVE FRONT FENDER OUTSIDE MOULDING LH
3. REMOVE FRONT FENDER LINER LH
(a) Using a screwdriver, turn the pin 90 degrees and remove the 2 pin
hold clips.
Text in Illustration
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Actuator Supply Voltage Circuit / Open (P0657)
MONITOR DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check
ensures that the ECM is functioning properly. The output voltage is usually 0 V
when the ignition switch is turned off. If the output voltage is higher than ...