Nissan Sentra B18 (2020-2025) Service Manual: Additional Service When Replacing Tcu
Description
-
You must have ALL customer keys before beginning this procedure.
-
Each TCU is registered to a specific VIN. TCU’s cannot be swapped between Nissan Sentra vehicles. Once a TCU is registered to a vehicle, the TCU cannot be used in another vehicle.
-
The VIN must be written to the replacement TCU after installation.
-
The replacement TCU must come from Nissan North America parts supply.
When a TCU is replaced, TCU activation is required. Refer to TSB for activation details.
Diagnosis and Repair Work Flow
Work Flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
GET INFORMATION FOR SYMPTOM
Get detailed information from the customer ...
Additional Service After Automatic Report
Description
Description
When the automatic report function of the TCU is activated, the
TCU is locked. After the automatic report function of the TCU is activated, it
is necessary to rele ...
Other materials:
P2004 Intake Manifold Runner Control
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...
Its Can Communication Circuit
Diagnosis Procedure
Diagnosis Procedure
CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT
to see that the chassis CAN communication 2 circuit has no
malfunction.
Is the chassis CAN communication 2 circuit
normal?
YES >>
...
P0138 HO2S2
DTC Logic
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and
lean than the air fuel ratio (A/
F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold)
causes the longer switching
time.
MALFUNCTION A
To judge the malfunction ...
