Nissan Altima 2007-2012 Service Manual: B2611 ACC relay
Description
BCM turns ON the ACC relay to supply ACC power to each ECU when the power supply position changes to ACC.
BCM check ACC relay ON request for consistency with the actual ACC relay operation status.
DTC Logic
DTC DETECTION LOGIC
NOTE: • If DTC B2611 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to PCS-58, "DTC Logic" .
• If DTC B2611 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to PCS-59, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the power supply position to ACC under the following conditions, and wait for at least 2 seconds.
- CVT selector lever is in P or N position
- Brake not depressed
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected? YES >> Go to PCS-63, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK ACC RELAY FEED BACK INPUT SIGNAL
Check voltage between BCM harness connector and ground under the following conditions.
Is the inspection result normal? YES >> GO TO 5
NO >> GO TO 2
2.CHECK ACC RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ACC relay.
3. Check voltage between ACC relay harness connector and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK FUSE
Check 10A fuse [No. 19, located in the fuse block (J/B)].
Is the inspection result normal? YES >> GO TO 4
NO >> Replace fuse.
4. CHECK ACC RELAY FEEDBACK CIRCUIT
1. Disconnect BCM harness connector.
2. Check continuity between ACC relay harness connector (A) and BCM harness connector (B).
3. Check continuity between ACC relay harness connector and ground.
Is the inspection result normal? YES >> GO TO 5
NO >> Repair or replace harness.
5. CHECK INTERMITTENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
B260A ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
• Ignition relay-1 (inside IPDM E/R)
• Ignition relay-2 (inside f ...
B2614 ACC relay circuit
Description
BCM controls the various electrical components and simultaneously supplies
power according to the power
supply position.
BCM checks the power supply position internally.
DTC Logic ...
Other materials:
Mixture ratio self-learning value
clear
Description
This describes how to erase the mixture ratio self-learning value. For the
actual procedure, follow the instructions
in “Diagnosis Procedure”.
Special Repair Requirement
1.START
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CO ...
B2612 steering status
Description
There are 2 switches in the electronic steering column lock. IPDM E/R
compares those 2 switches conditions
to judge the present steering status and transmit the result to BCM via CAN
communication.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2612 is displayed with DTC U10 ...
Cleaning exterior
In order to maintain the appearance of your vehicle,
it is important to take proper care of it.
To protect the paint surfaces, please wash your
vehicle as soon as you can:
● after a rainfall to prevent possible damage
from acid rain.
● after driving on coastal roads.
● whe ...