Nissan Sentra B18 (2020-2025) Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f15a / Dtc/circuit Diagnosis / U1112-24 Deceleration Request Signal

Nissan Sentra B18 (2020-2025) Service Manual: U1112-24 Deceleration Request Signal

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
U1112	24	DECELERATION REQUEST SIGNAL (Deceleration Request Signal)	1	Diagnosis condition	Accelerator pedal opening ≥ 4 deg
				Signal	CAN communication signal
				Threshold	TCM is unable to receive the CAN communications signal from chassis control module
				Diagnosis delay time	2 seconds
			2	Diagnosis condition	Nissan Sentra Vehicle speed ≤ 10 km/h (6 MPH)
				Signal	CAN communication signal
				Threshold	TCM is unable to receive the CAN communications signal from chassis control module
				Diagnosis delay time	10 seconds

POSSIBLE CAUSE

Harness or connector (CAN communication line is error)
Chassis control module
TCM

FAIL-SAFE

Not changed from normal driving

DTC CONFIRMATION PROCEDURE

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 10 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V.

>>
GO TO 2.
CHECK DTC DETECTION

With CONSULT
1. Start the engine and wait for at least 10 seconds.
2. Drive the Nissan Sentra vehicle at 10 km/h (6 MPH) for at least 10 seconds.
3. Stop the vehicle.
4. Check the DTC.
Is "U1112-24" detected?
YES >>
Go to Diagnosis Procedure.
NO >>
INSPECTION END

Diagnosis Procedure

Diagnosis Procedure

For the diagnosis procedure, refer to Trouble Diagnosis Flow Chart.

 U0300-00 Can Communication Data

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 P0604-00 Control Module Ram

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