User Manual - Page 165

For 2001 INFINITI I30.

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7 CHECK ABSOLUTE PRESSURE SENSOR
1. Remove absolute pressure sensor with its harness connector connected.
2. Remove hose from absolute pressure sensor.
3. Install a vacuum pump to absolute pressure sensor.
4. Turn ignition switch “ON” and check output voltage between ECM terminal 80 and engine ground under the following
conditions.
SEF300X
CAUTION:
I Always calibrate the vacuum pump gauge when using it.
I Do not apply below −93.3 kPa (–700 mmHg, –27.56 inHg) or over 101.3 kPa (760 mmHg, 29.92 inHg) of pressure.
OK or NG
OK © GO TO 8.
NG © Replace absolute pressure sensor.
8 CHECK ABSOLUTE PRESSURE SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect joint connector-18.
3. Check the following.
I Continuity between joint connector terminal 2 and ground
Refer to Wiring Diagram.
I Joint connector
(Refer to EL-525, “HARNESS LAYOUT”.)
Continuity should exist.
4. Also check harness for short to power.
5. Then reconnect joint connector-18.
OK or NG
OK © GO TO 9.
NG © Repair open circuit or short to power in harness or connectors.
9 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.
© INSPECTION END
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0105 ABSOLUTE PRESSURE SENSOR
Diagnostic Procedure (Cont’d)
EC-165
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