Nissan Maxima Service and Repair Manual: B261A push-button ignition switch
Description
IPDM E/R transmits the push-button ignition switch status via CAN
communication to BCM. BCM receives
push-button ignition switch status by hardwire input. BCM compares the 2 signals
for mismatch.
DTC Logic
DTC DETECTION LOGIC
NOTE:
- If DTC B261A is displayed with DTC U1000, first perform the
trouble diagnosis for DTC U1000. Refer to
PCS-44, "DTC Logic".
- If DTC B261A is displayed with DTC U1010, first perform the
trouble diagnosis for DTC U1010. Refer to
PCS-45, "DTC Logic".
![Nissan Maxima. DTC DETECTION LOGIC](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6326.jpg)
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
- Press the push-button ignition switch under the following
conditions and wait for at least 1 second.
- CVT selector lever is in the P position
- Do not depress brake pedal.
- Check "Self diagnostic result" with CONSULT.
Diagnosis Procedure
1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION
Press push-button ignition switch and check if it turns to ON.
2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
![Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6327.jpg)
- Turn ignition switch OFF.
- Disconnect push-button ignition switch.
- Check voltage between IPDM E/R harness connector and
ground.
![Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6328.jpg)
3. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6329.jpg)
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6330.jpg)
- Disconnect IPDM E/R and BCM.
- Check continuity between IPDM E/R harness connector (A) and
push-button ignition switch harness connector (B).
- Check continuity between IPDM E/R harness connector and
ground.
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6331.jpg)
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6332.jpg)
4. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)
- Disconnect push-button ignition switch.
- Check voltage between BCM harness connector and ground.
![Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6333.jpg)
5. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
- Disconnect BCM and IPDM E/R.
- Check continuity between BCM harness connector and push-button
ignition switch harness connector.
- Check continuity between BCM harness connector and ground.
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6334.jpg)
![Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)](/images/manuals/399/nissan_maxima_b261a_push_button_ignition_switch_6335.jpg)
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 ...
BCM
BCM : Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnec ...
Other materials:
Trunk lid opener
Wiring Diagram
...
Audio system
System Diagram
System Description
AUDIO SYSTEM
The audio system consists of the following components
Audio unit
Display unit
Bluetooth control unit
Window antenna
BOSE speaker amp.
Steering wheel audio control switches
Front door speakers
Tweeters
Center speaker
Rear door ...
Periodic maintenance
ROAD WHEEL
Inspection
ALUMINUM WHEEL
Check tires for wear and improper inflation.
Check wheels for deformation, cracks and other damage. If deformed,
remove wheel and check wheel runout.
Remove tire from aluminum wheel and
mount on a tire balance machine. Refer to WT-62, "Rem ...