HAIMA 7 - Page 429

Troubleshotting
U-19
Step Inspection Action
l Turn ignition switch to lock position.
l Does one of climate control unit connector
(6-pin for air intake mode) terminals
below short to ground?
— Terminal c (fresh signal)
— Terminal e (recirculate signal)
No Replace climate control unit, and then go
to step 15.
8
Verify whether malfunction is in air intake
actuator or air intake control valve of
blower assembly.
l Remove air intake actuator.
l Turn ignition switch to on position.
l Set fan switch at 4th position.
l Can air intake mode (recirculate fresh) be
changed easily when air intake link is
operated manually?
Yes Go to next step.
No Go to step 13.
9
Inspect air intake actuator
l Inspect air intake actuator (see u-32, air
intake actuator inspection)
l Is it normal?
Yes Go to next step.
No Replace air intake actuator, then go to
step 15.
*10
Inspect continuity of wiring harness between
front climate control unit and air intake
actuator.
l Turn ignition switch to lock position.
l Is there continuity between following front
climate control unit connector (12-pin for
air intake mode) terminals and air intake
actuator connector terminals?
— Terminal c- terminal c (fresh signal)
— Terminal e- terminal a (recirculate signal)
Yes Go to next step.
No Repair wiring harness between front
climate control unit and air intake
actuator, then go to step 15.
*11
Inspect wiring harness between front climate
control unit and air intake actuator for short
circuit to ground.
l Is there continuity between following front
climate control unit connector (12-pin for
air intake mode) terminals and ground?
— Terminal c (fresh signal)
— Terminal e (recirculate signal)
Yes Repair wiring harness between front
climate control unit and air intake
actuator, then go to step 15.
No Go to next step.
*12
Verify whether malfunction is in wiring
harness (the harness b+ (positive battery
voltage) between front climate control unit
Yes Repair wiring harness between front
climate control unit and air intake
actuator, turn to step 15.