Toyota Tacoma manuals

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.

  1. Cold soak preconditions

The monitor will not run unless:

  1.  cold soak procedure

Let the vehicle cold soak for 8 hours or until the difference between iat and ect becomes less than 13f (7 C).

Hint

: examples:

Catalyst monitor (o2s type)
Preconditions The monitor will not run unless: mil is off. Engine coolant temperature (ect) is 176f (80 C) or greater. Intake air temperature (iat) is 14f (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 procedure
1 Check source voltage Measure the voltage of the battery. Ok: voltage: 10 14 v 2 Check air bag sensor assy center Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors from the airbag sensor assy cent ...

Terminals of ecu
1. Inspect integration relay Disconnect the connector from the integration relay. check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table. Standard: If the result is not as specified, the vehicles si ...

Inspection procedure
1 Check operation(overdrive) Drive the vehicle after the engine warms up.  check that overdrive on e off occurs by an operation of the o/d switch onoff. 2 Inspect terminal voltage(od) Remove the cruise control ecu assy with the connector still connected.  turn ...

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