Toyota Corolla Repair Manual: Evap monitor (vacuum pressure monitor)
Notice
: a cold soak must be performed prior to conducting the drive pattern to complete the internal pressure readiness monitor.
- Cold soak preconditions
The monitor will not run unless:
- mil is off.
- Fuel level is approximately 1/2 to 3/4.
- Altitude is 7800 feet (2400 m) or less.
- cold soak procedure
Let the vehicle cold soak for 8 hours or until the difference between iat and ect becomes less than 13°f (7 °C).
Hint
: examples:
- scenario 1
ect = 75°f (24 °C)
iat = 60°f (16 °C)
difference between ect and iat is 15°f (8 °C).The monitor will not run because difference between ect and iat is greater than 13°f (7 °C).
- Scenario 2
ect = 70°f (21 °C)
iat = 68°f (20 °C)
difference between ect and iat is 2°f (1 °C).The monitor will run because difference between ect and iat is less than 13°f (7 °C).
Catalyst monitor (o2s type)
Preconditions
The monitor will not run unless:
mil is off.
Engine coolant temperature (ect) is 176°f (80 °C) or greater.
Intake air temperature (iat) is 14°f (–10 °C) or greater.*
...
Evap monitor (vacuum pressure monitor) (continued)
Preconditions
The monitor will not run unless:
mil is off.
Fuel level is approximately 1/2 to 3/4.
Altitude is 7800 feet (2400 m) or less.*
Engine coolant temperature (ect) is betw ...
Other materials:
Inspection
1. Windshield wiper switch assy
Continuity check
check the continuity of each terminal of the connector.
Front wiper switch
Standard:
Front washer switch
Standard:
W/o intermittent time adjust:
intermittent operation check
connect the voltmeter (+) te ...
Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner
belt assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat inner belt assy (lh). ...
Inspection procedure
1 Check hazard warning signal switch assy
Check the hazard warning switch continuity, as shown in
the illustration and table.
Standard:
2 Check turn signal flasher assy
3 Check wire harness (tvip ecu turn signal flasher)
Disconnect the tvip ecu and turn signal flashe ...