TECHNICAL DESCRIPTION
Monitors the computation function of the ECM periodically.
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC set in memory for the item monitored below)
Sensor (The sensor below is determined to be normal)
DTC SET CONDITIONS <Functional check - all RAM area>
Check Condition
- Ignition switch is "ON" position.
Judgment Criterion
- When RAM error data is detected 100 times or more.
DTC SET CONDITIONS <RAM complement error>
Check Condition
- Ignition switch is "ON" position.
Judgment Criterion
- When RAM complement error data is detected 20 times or more.
DTC SET CONDITIONS <Functional check - RAM of electronic throttle valve control>
Check Condition
- Ignition switch is "ON" position.
Judgment Criterion
- When RAM of electronic throttle valve control error data is detected.
FAIL-SAFE AND BACKUP FUNCTION
or
- Throttle opening degree position is in default position.
TROUBLESHOOTING HINTS (The most likely causes for this code to be stored are: )