Troubleshooting
U-30
Step Inspection Action
*12
Inspect continuity of wiring harness between
rear climate control unit and air mix
actuator.
l Is there continuity between the following
terminals of rear climate control connector
and terminals (motor driving signal) of air
mix actuator?
— Terminal a
— Terminal g
— Terminal b
— Terminal f
Yes Go to next step.
No Repair wiring harness between rear
climate control unit and air mix actuator,
go to step 21.
*13 Inspect wiring harness between rear climate
control unit and air mix actuator to
determine whether it is short to ground.
l Is there continuity between following
terminals of rear climate control unit and
ground?
— Terminal a
— Terminal b
Yes Repair wiring harness between rear
climate control unit and air mix actuator,
go to step 21.
No Go to next step.
*14
Inspect wiring harness between rear climate
control unit and air mix actuator to
determine whether it is short to b+ (positive
battery voltage)
l Turn ignition switch to on position.
l Measure wiring harness side voltage of
following air mix connectors.
— Terminal a
— Terminal g
— Terminal b
— Terminal f
l Is voltage approximately equivalent to b+
(positive battery voltage)?
Yes Repair wiring harness between rear
climate control unit and air mix actuator,
go to step 21.
No Go to next step.
15
Inspect air mix actuator of rear a/c unit.
l Remove the actuator.
l Inspect air mix links and rockers of rear a/c
unit.
— Is there grease on links and rockers?
— Are links and rockers firmly installed at
proper position?
l Are all above items normal?
Yes Go to next step.
No Apply grease or install links and rockers
firmly at proper positions, go to step 21.
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