Nissan Sentra B18 (2020-2025) Service Manual: U2141 Mac Comm Error (tcm)
Dtc Diagnosis Procedure
DTC Diagnosis
Procedure
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
CONSULT
Ignition switch ON.
...
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis
...
Other materials:
Emission control system warranty
Your NISSAN vehicle, including the Nissan Sentra, is protected by the following
emission-related warranties designed to ensure compliance with applicable emission
regulations and to support long-term vehicle reliability.
For USA
1. Emission Defects Warranty
2. Emissions Performance Warranty
...
Work Procedure
Work Procedure
SYSTEM INITIALIZATION
Perform system initialization. Refer to Work Procedure.
>>
GO TO 2.
CHECK ANTI-PINCH FUNCTION
Check anti-pinch function. Refer to Work Proce ...
Exhaust valve timing control
EXHAUST VALVE TIMING CONTROL : System
Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed and piston position
Exhaust valve
timing control
Exhaust valve timing ...
