TECHNICAL DESCRIPTION
- The barometric pressure sensor outputs a voltage which corresponds to the barometric pressure.
- The ECM checks whether this voltage is within a specified range.
DESCRIPTIONS OF MONITOR METHODS
Barometric pressure sensor output voltage is out of reasonable barometric pressure range.
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
Check Conditions
- More than 2 seconds have passed since the engine starting sequence was completed.
- Battery positive voltage is higher than 6 volts.
Judgment Criterion
- Barometric pressure sensor output signal is more than 113 kPa (33.4 in.Hg) (approximately 4,000 ft below sea level) for 10 seconds.
FAIL-SAFE AND BACKUP FUNCTION
- Control as if the barometric pressure is 101 kPa (29.8 in.Hg).
OBD-II DRIVE CYCLE PATTERN
- Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 2 .
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are: )