Nissan Sentra B18 (2020-2025) Service Manual: P155e Generator Voltage

Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P155e Generator Voltage

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P155E	GENERATOR VOLTAGE (GENERATOR VOLTAGE)	Diagnosis condition	Ignition switch ON
		Signal (terminal)	Power supply
		Threshold	Battery voltage measured by ECM below threshold.
		Diagnosis delay time	20 seconds or more

POSSIBLE CAUSE

Harness and connectors
ECM
IPDM E/R
Battery
Generator

FAIL-SAFE

Engine Control System

Not applicable

Idle Start/Stop System

When a DTC is detected, the start/stop indicator lamp blinks slowly and the idle start/stop system operation is prohibited.

When ECM detects error while operating the idle start/stop system, ECM restarts the engine.

Confirmation Procedure

Confirmation Procedure

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

>>
GO TO 2.
DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 20 seconds.
2. Check DTC.
Witch DTC is detected?
YES >>
Refer to DTC Diagnosis Procedure.
NO-1 >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2 >>
Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

CHECK CHARGE SYSTEM

Check charge system. Refer to Work Flow (With 165-DSS-5000P) or Work Flow (Without 165-DSS-5000P).

Witch DTC is detected?
YES >>
INSPECTION END
NO >>
Repair or replace the error-detected parts.

P155d Generator

Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms ( ...

P155f Generator Voltage

Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble ...

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