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 (
Special Tools Required
Vacuum pump/gauge, 0-30 in.Hg, Snap-on YA4000A
or equivalent, commercially available.
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. Clear the DTC wi
1. Turn the ignition switch ON (II).
Does the charging system indicator come on?
YES-Go to step 2.
NO-Go to step 14.
2. Start the engine. Hold the engine speed at
2,000 rpm for 1 minute.
Does the charging system indicator go off? YES-Charging system indicator circuit
is OK. Go to the alternator