Nissan Altima (L32) 2007-2012 Service Manual: ECU diagnosis
BCM (BODY CONTROL MODULE)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
Terminal Layout
Physical Values
1: Sedan only
2: With LH front window anti-pinch
3: With LH and RH front window anti-pinch
4: With Intelligent Key
5: Without Intelligent Key
Wiring Diagram-Coupe
Wiring Diagram-Sedan
Fail Safe
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.
DTC Index
NOTE:
Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning ignition switch OFF → ON again.
• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1 → 2 → 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch OFF → ON after returning to the normal condition if the malfunction is detected again.
Combination switch output circuit
Diagnosis Procedure
1. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect the BCM and combination switch.
3. Check continuity between BCM harness connect ...
Symptom diagnosis
COMBINATION SWITCH SYSTEM SYMPTOMS
Symptom Table
1. Perform the data monitor of CONSULT-III to check for any malfunctioning
item.
2. Check the malfunction combinations.
3. Identify the malfu ...
Other materials:
Driver side
Description
Door glass moves UP/DOWN by receiving the signal from power window main
switch.
Component Function Check
1. CHECK POWER WINDOW MOTOR CIRCUIT
Does front power window motor LH operate with operating main power window and
door lock/unlock switch?
Is the inspection result normal?
Y ...
B2601 shift position
Description
BCM confirms the shift position with the following 2 signals.
• CVT selector lever
• P position signal from IPDM E/R (CAN)
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
SEC-36 ...
Vehicle security indicator
Description
• Vehicle security indicator is built in combination meter.
• NVIS (Nissan Vehicle Immobilizer System-NATS) and vehicle security system
conditions are indicated by
blink or illumination of vehicle security indicator.
Component Function Check
1.CHECK FUNCTION
1. Perform “ ...
