Nissan Sentra Service Manual: Main power supply and ground circuit
Diagnosis Procedure
1.CHECK TCM POWER CIRCUIT (PART 1)
- Turn ignition switch OFF.
- Disconnect TCM connector.
- Check voltage between TCM harness connector terminals and ground.
Is the inspection result normal? YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK TCM POWER CIRCUIT (PART 2)
Check voltage between TCM harness connector terminals and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 5.
3.CHECK TCM GROUND CIRCUIT
Check continuity between TCM harness connector terminals and ground.
Is the inspection
result normal?
YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
4.DETECT MALFUNCTION ITEMS (PART 1)
Check the following items:
- Open or short circuit of harness between battery positive terminal and
TCM connector terminals 45 and 46.
Refer to PG-8, "Wiring Diagram — Battery Power Supply —".
- 10A fuse (No.33, fuse and fusible link block). Refer to PG-48, "Terminal Arrangement".
- 10A fuse (No.36, fuse and fusible link block). Refer to PG-48, "Terminal Arrangement".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
5.DETECT MALFUNCTIONING ITEMS (PART 2)
Check the following items:
- Harness open circuit or short circuit between ignition switch and IPDM E/R. Refer to PG-20, "Wiring Diagram — Ignition Power Supply —".
- Harness open circuit or short circuit between IPDM E/R and TCM.
- 10A fuse (No.45, IPDM E/R). Refer to PG-48, "Terminal Arrangement".
- IPDM E/R
Is the check result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
P285A Clutch B Pressure
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P285A
CLUTCH B PRESSURE
(Clutch B Pressur ...
Overdrive control switch
Component Function Check
1.CHECK SPORT INDICATOR LAMP FUNCTION
Check OD OFF indicator lamp turns ON for approx. 2 seconds when ignition
switch turns ON.
Is the inspection result normal?
YES &g ...
Other materials:
P0447 EVAP Canister vent control valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0447
VENT CONTROL VALVE
(Evaporative emission system vent
control circuit open)
An improper voltage signal is sent to
ECM throug ...
Steering switch (meter control switch) signal circuit
Diagnosis Procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check combination meter input signal
Turn ignition switch on.
Measure voltage between the following terminals of the combination
meter.
Is the inspection result normal?
Yes &g ...
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
