Special Service Tool
The actual shapes of the tools may differ from those illustrated here.

Commercial Service Tool

Sealant and/or Lubricant

PrecautionAir mix door control system
System Diagram
System Description
The air mix doors are automatically controlled so that in-vehicle temperature
is maintained at a predetermined
value by the temperature setting, ambient temperature, intake temperature and
amount of sunload.
SYSTEM OPERATION
The A/C auto amp. receive ...
HVAC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the A/C auto amp. for
damage, bend and loose connection (unit
side and connector side).
2.CHECK HARNESS FOR OPEN CIRCUI ...
P0452 evap control system pressure sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously ...