Infiniti I30 (A33). Manual — part 533
Self-diagnosis
TROUBLE DIAGNOSIS PROCEDURE FOR SELF-DIAGNOSIS
=NHHA0211
SYMPTOM:
I
Self-diagnosis cannot be performed.
INSPECTION FLOW
RHA954H
*4: HA-100
*5: HA-104
*6: HA-106
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Self-diagnosis
HA-91
Memory Function
TROUBLE DIAGNOSIS PROCEDURE FOR MEMORY FUNCTION
=NHHA0212
SYMPTOM:
I
Memory function does not operate.
INSPECTION FLOW
RHA955H
*3: HA-37
*4: HA-51
TROUBLE DIAGNOSES
Memory Function
HA-92
ECON (ECONOMY) Mode
TROUBLE DIAGNOSIS PROCEDURE FOR ECON (ECONOMY) MODE
=NHHA0213
SYMPTOM:
I
ECON mode does not operate.
INSPECTION FLOW
RHA956H
*3: HA-37
*4: HA-51
RHA410H
Ambient Sensor Circuit
COMPONENT DESCRIPTION
NHHA0214
The ambient sensor is attached in front of the right side condenser.
It detects ambient temperature and converts it into a resistance
value which is then input into the auto amplifier.
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
ECON (ECONOMY) Mode
HA-93
AMBIENT TEMPERATURE INPUT PROCESS
NHHA0215
The automatic amplifier includes a “processing circuit” for the ambi-
ent sensor input. However, when the temperature detected by the
ambient sensor increases quickly, the processing circuit retards the
auto amp. function. It only allows the auto amp. to recognize an
ambient temperature increase of 0.33°C (0.6°F) per 100 seconds.
As an example, consider stopping for a cup of coffee after high
speed driving. Although the actual ambient temperature has not
changed, the temperature detected by the ambient sensor will
increase. This is because the heat from the engine compartment
can radiate to the front grille area, location of the ambient sensor.
RHA051GA
DIAGNOSTIC PROCEDURE
NHHA0216
SYMPTOM: Ambient sensor circuit is open or shorted. (
or
−
is indicated on the display as a result of conducting Self-
diagnosis STEP 2.)
1
CHECK VOLTAGE BETWEEN AMBIENT SENSOR HARNESS CONNECTOR AND BODY GROUND
Disconnect ambient sensor harness connector.
Do approx. 5 volts exist between ambient sensor harness terminal No. 1 and body ground?
RHA052GE
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 4.
TROUBLE DIAGNOSES
Ambient Sensor Circuit (Cont’d)
HA-94
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