Nissan Maxima Service and Repair Manual: B2128 UART communication line
Description
Driver seat control unit performs UART communication with the automatic drive positioner control unit using 1 communication line. Driver seat control unit receives the operation signals of ADP steering switch, door mirror remote control switch and the position signals of tilt sensor, telescopic sensor and door mirror sensors from the automatic drive positioner control unit and transmits the operation request signal.
DTC Logic
DTC DETECTION LOGIC
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
| B2128 | UART COMM | The communication between driver seat control unit and automatic drive positioner control unit is interrupted for a period of time |
|
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Check "Self diagnostic result" with CONSULT.
Is the DTC is detects?
Diagnosis Procedure
Regarding Wiring Diagram information, refer to ADP-150, "Wiring Diagram".
1.PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Check "Self diagnostic result" with CONSULT.
- Erase the DTC.
- Perform DTC confirmation procedure. Refer to ADP-45, "DTC Logic".
Is the DTC displayed again?
2. CHECK UART COMMUNICATION LINE CONTINUITY
- Turn ignition switch OFF.
- Disconnect driver seat control unit and automatic drive positioner control unit.
- Check continuity between driver seat control unit harness connector and automatic drive positioner control unit harness connect
- Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
B2116 tilt motor
Description
The tilt motor is installed to the steering column assembly.
The tilt motor is activated with the automatic drive positioner control
unit.
The steering column is tilted up/down ...
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-67, "Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
...
Other materials:
Parking brake
WARNING
Be sure the parking brake is fully released
before driving. Failure to do so
can cause brake failure and lead to an
accident.
Do not release the parking brake from
outside the vehicle.
Do not use the shift lever in place of the
parking brake. When parking, be sure
the par ...
Front wiper motor lo circuit
Component Function Check
1. CHECK FRONT WIPER LO OPERATION
IPDM E/R AUTO ACTIVE TEST
Start IPDM E/R auto active test. Refer to PCS-11, "Diagnosis
Description".
Check that the front wiper operates at the LO operation.
CONSULT ACTIVE TEST
Select "FRONT WIPER" of IPDM E/R active test ...
Xenon headlamp
Description
OPERATION
Refer to EXL-10, "Component Description".
PRECAUTIONS FOR TROUBLE
DIAGNOSIS
Installation or removal of the connector must be done with the
lighting switch OFF.
When the lamp is illuminated (when the lighting switch is ON), do
not touch the harness, HID control ...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
0.0086