Page 2920 of 3000
AC–20AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)
AC
(b) Turn the ignition switch to the ON position.
(c) From the display on the tester, read the "ACTIVE
TEST".
Tester Display Test Part Control Range Diagnostic Note
BLOWER MOTOR Blower motor min.: Level 0, max.: Level 31 -
AIR MIX DAMP-D Air mix damper (D side) min.: -14%, max: 113.5% -
AIR MIX DAMP-P Air mix damper (P side) min.: -14%, max: 113.5% -
A/O MODE DAMP-DAir outlet damper position (D
side)min.: -14%, max: 113.5% -
A/I DAMP-LINEAR Air inlet damper position (linear) min.: -14%, max: 113.5% -
REAR BLOWER Blower motor (Rear) OFF, LO, HI -
A/O MODE DAMP-R Air outlet damper position (Rear) min.: -14%, max: 113.5% -
AIR MIX DAMP-R Air mix damper (Rear) min.: -14%, max: 113.5% -
A/C MAG CLUTCH Magnetic clutch relay OFF, ON -
Page 2925 of 3000

AIR CONDITIONING – AIR CONDITIONING SYSTEM (for Automatic Air Conditioning Sys-
tem)AC–25
AC
(b) As each damper, motor and relay automatically
operate actuator check at 1-second intervals from
step No. 1 to No. 10 continuously, check the
temperature and air flow visually and by hand.
If the slower display is desired, press the DEF
switch and change it to step operation. Each time
the DEF switch is pressed, the display changes by 1
step.
HINT:
• Codes are displayed from smaller to larger
numbers in order.
• To cancel the check mode, press the OFF switch.
Step No.Display
codeConditions
Fr. Blower
levelFr. Air flow
ventAir inlet
damperMagnetic
clutchFr. Driver,
passenger
side air
mix
damperRr. Blower
levelRr. Air flow
ventRr. Air mix
damper
1 0 0 FACE FRESH OFF"COOL"
side
(Full
closed)0 FACE1"COOL"
side
(Full
closed)
2 1 1 FACE FRESH OFF"COOL"
side
(Full
closed)1 FACE1"COOL"
side
(Full
closed)
3 2 16 FACE FRESH ON"COOL"
side
(Full
closed)10 FACE1"COOL" /
"HOT"
(40% open)
4316FACEFRESH /
RECIRCUL
AT I O NON"COOL"
side
(Full
closed)10 FACE2"COOL" /
"HOT"
(40% open)
5416FACERECIRCUL
AT I O NON"COOL" /
"HOT"
(50% open)10 B/L"COOL" /
"HOT"
(40% open)
6516B/LRECIRCUL
AT I O NON"COOL" /
"HOT"
(50% open)10 B/L"COOL" /
"HOT"
(60% open)
7616FOOTRECIRCUL
AT I O NON"HOT" side
(Full open)10 B/L"COOL" /
"HOT"
(60% open)
8716FOOTRECIRCUL
AT I O NON
"HOT" side
(Full open)10 FOOT"COOL" /
"HOT"
(60% open)
9816FOOT /
DEF.RECIRCUL
AT I O NON"HOT" side
(Full open)10 FOOT"COOL" /
"HOT"
(86.5%
open)
10931DEF.RECIRCUL
AT I O NON"HOT" side
(Full open)31 FOOT"COOL" /
"HOT"
(86.5%
open)
Page 2976 of 3000
AIR CONDITIONING – HEATER RELAYAC–249
AC
HEATER RELAY
ON-VEHICLE INSPECTION
1. INSPECT HEATER RELAY
(a) Remove the heater relay.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
If the resistance is not as specified, replace the
heater relay.
E032993
Tester Connection Condition Specified Condition
3 - 5Always 10 k
or higher
When battery voltage is
applied to terminals 1
and 2Below 1
3 - 4Always Below 1 When battery voltage is
applied to terminals 1
and 210 k
or higher
Page 2977 of 3000
AC–250AIR CONDITIONING – HEATER RELAY (for Rear Air Conditioning System)
AC
HEATER RELAY (for Rear Air
Conditioning System)
ON-VEHICLE INSPECTION
1. INSPECT REAR HEATER RELAY
(a) Remove the rear heater relay.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
If the resistance is not as specified, replace the rear
heater relay.
E032993
Tester Connection Condition Specified Condition
3 - 5Always 10 k
or higher
Wh en ba ttery vo ltag e is
applied to terminals 1
and 2Below 1
3 - 4Always Below 1 Wh en ba ttery vo ltag e is
applied to terminals 1
and 210 k
or higher