Infiniti I30 (A33). Manual — part 534
2
CHECK AMBIENT SENSOR CIRCUIT BETWEEN AMBIENT SENSOR AND AUTO AMP. (LCU)
1. Disconnect auto amp. (LCU) harness connector.
2. Check circuit continuity between ambient sensor harness terminal No. 2 and auto amp. (LCU) harness terminal No. 11.
RHA475GC
Continuity should exist.
If OK, check harness for short.
OK or NG
OK
©
GO TO 3.
NG
©
Repair harness or connector.
3
CHECK AMBIENT SENSOR
Refer to HA-96.
OK or NG
OK
©
1. Replace auto amp. (LCU).
2. Go to “FUNCTION CONFIRMATION PROCEDURE”, “Self-diagnosis”, HA-37 and per-
form self-diagnosis STEP 2.
Confirm that code No. 20 is displayed.
NG
©
Replace ambient sensor.
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Ambient Sensor Circuit (Cont’d)
HA-95
4
CHECK AMBIENT SENSOR CIRCUIT BETWEEN AMBIENT SENSOR AND AUTO AMP. (LCU)
1. Disconnect auto amp. (LCU) harness connector.
2. Check circuit continuity between ambient sensor harness terminal No. 1 and auto amp. (LCU) harness terminal No. 2.
SHA374F
Continuity should exist.
If OK, check harness for short.
OK or NG
OK
©
1. Replace auto amp. (LCU).
2. Go to “FUNCTION CONFIRMATION PROCEDURE”, “Self-diagnosis”, HA-37 and per-
form self-diagnosis STEP 2.
Confirm that code No. 20 is displayed.
NG
©
Repair harness or connector.
RHA411H
COMPONENT INSPECTION
NHHA0217
Ambient Sensor
NHHA0217S01
After disconnecting ambient sensor harness connector, measure
resistance between terminals 2 and 1 at sensor harness side, using
the table below.
Temperature °C (°F)
Resistance k
Ω
−15 (5)
12.73
−10 (14)
9.92
−5 (23)
7.80
0 (32)
6.19
5 (41)
4.95
10 (50)
3.99
15 (59)
3.24
20 (68)
2.65
25 (77)
2.19
30 (86)
1.81
TROUBLE DIAGNOSES
Ambient Sensor Circuit (Cont’d)
HA-96
Temperature °C (°F)
Resistance k
Ω
35 (95)
1.51
40 (104)
1.27
45 (113)
1.07
If NG, replace ambient sensor.
RHA412H
In-vehicle Sensor Circuit
COMPONENT DESCRIPTION
NHHA0218
In-vehicle sensor
NHHA0218S01
The in-vehicle sensor is located on instrument lower panel. It con-
verts variations in temperature of compartment air drawn from the
aspirator into a resistance value. It is then input into the auto
amplifier.
RHA413H
RHA482A
Aspirator
NHHA0218S02
The aspirator is located in front of heater unit. It produces vacuum
pressure due to air discharged from the heater unit, continuously
taking compartment air in the aspirator.
RHA056GB
DIAGNOSTIC PROCEDURE
NHHA0219
SYMPTOM: In-vehicle sensor circuit is open or shorted. (
or
−
is indicated on the display as a result of conducting Self-
diagnosis STEP 2.)
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Ambient Sensor Circuit (Cont’d)
HA-97
1
CHECK IN-VEHICLE SENSOR CIRCUIT BETWEEN IN-VEHICLE SENSOR AND BODY GROUND
Disconnect in-vehicle sensor harness connector.
Do approx. 5 volts exist between in-vehicle sensor harness terminal No. 1 and body ground?
SHA318F
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 4.
2
CHECK IN-VEHICLE SENSOR CIRCUIT BETWEEN IN-VEHICLE SENSOR AND AUTO AMP. (LCU)
1. Disconnect auto amp. (LCU) harness connector.
2. Check circuit continuity between in-vehicle sensor harness terminal No. 2 and auto amp. (LCU) harness terminal No.
11.
RHA478GC
Continuity should exist.
If OK, check harness for short.
OK or NG
OK
©
GO TO 3.
NG
©
Repair harness or connector.
TROUBLE DIAGNOSES
In-vehicle Sensor Circuit (Cont’d)
HA-98
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст