WARNING
Compressed air mixed with the R-134a forms a
combustible vapor.
The vapor can burn or explode causing serious
injury.
Never use compressed air to pressure test
R-134a service equipment
The air conditioning system removes heat from the passenger compartment by
transferring heat from the ambient air
to the evaporator. The evaporator cools the air with the refrigerant that is
circula
DTC indicator 1: An Open in the Air Mix
Control Motor Circuit
1. Start the engine.
2. Turn on the A/C, then set the temperature control
dial to Max Hot.
3. Turn the ignition switch OFF and then ON (
DTC P2270: Secondary HO2S (Sensor 2)
Circuit Signal Stuck Lean
DTC P2271: Secondary HO2S (Sensor 2)
Circuit Signal Stuck Rich
NOTE: Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information.
1. Turn the ignition switch ON (II).
2
To apply the parking brake, push the
pedal down with your foot. To
release it, push on the pedal again.
The parking brake indicator on the
instrument panel should go out when
the parking brake is fully released.
Driving the vehicle with the parking
brake applied can damage the re