Nissan Altima 2007-2012 Service Manual: Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in GI-45, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and ground.
3. Also check harness for short to power.
is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E11, F2
• Harness for open or short between ECM and ground
>> Repair open circuit or short to power in harness or connectors.
4.CHECK ECM POWER SUPPLY CIRCUIT-I
1. Reconnect ECM harness connector.
2. Turn ignition switch OFF and then ON.
3. Check the voltage between ECM harness connectors.
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
• IPDM E/R connector E18
• 10 A fuse (No. 35) • Harness for open or short between ECM and IPDM E/R
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Check the voltage between ECM harness connectors.
Is the inspection result normal? YES >> GO TO 7.
NO >> GO TO 9.
7.CHECK ECM POWER SUPPLY CIRCUIT-III
1. Turn ignition switch ON.
2. Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace IPDM E/R.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> INSPECTION END
9.CHECK ECM POWER SUPPLY CIRCUIT-IV
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Check the voltage between ECM harness connectors.
Is the inspection result normal? YES >> GO TO 12.
NO >> GO TO 10.
10.CHECK ECM POWER SUPPLY CIRCUIT-V
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 11.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
11.CHECK 15 A FUSE
1. Disconnect 15 A fuse (No. 42) from IPDM E/R.
2. Check 15 A fuse.
Is the inspection result normal? YES >> GO TO 13.
NO >> Replace 15 A fuse.
12.CHECK ECM POWER SUPPLY CIRCUIT-VI
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 13.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
13.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Trouble diagnosis - specification
value
Description
The specification (SP) value indicates the tolerance of the value that is
displayed in “SPEC” of “DATA MONITOR”
mode of CONSULT-III during normal operation of the Engine Contr ...
U0101 can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excelle ...
Other materials:
Rear window defogger and door
mirror defogger do not operate
Diagnosis Procedure
1. CHECK REAR WINDOW DEFOGGER SWITCH
Check rear window defogger switch.
Refer to DEF-13, "Component Function Check".
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning parts.
2. CHECK REAR WINDOW DEFOGGER R ...
B210D starter relay
Description
Located in IPDM E/R, it runs the starter motor. The starter relay is turned
ON by the BCM when the ignition
switch is in START position. IPDM E/R transmits the starter relay ON signal to
BCM via CAN communication.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B210D is displa ...
In-vehicle sensor
Component Description
In-vehicle sensor
The in-vehicle sensor (1) is located on instrument lower panel LH. It
converts variations in temperature of compartment air drawn from
the aspirator into a resistance value. It is then input into the front air
control.
Aspirator
The aspirator (1) is ...