DTC Logic
DTC DETECTION LOGIC
|
DTC |
Display item |
Malfunction detected condition |
Possible cause |
| C1601 | BATTERY VOLT | When a power supply voltage to the EPS control unit is maintained at 18.2 V or more or at less than 9 V continuously for five second or more. |
|
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.DTC REPRODUCTION PROCEDURE
With CONSULT
Is DTC “C1601” detected? YES >> Proceed to diagnosis procedure. Refer to STC-20, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STC-14, "Wiring Diagram".
1.CHECK EPS CONTROL UNIT GROUND CIRCUIT

Is the inspection result normal? YES >> GO TO 2.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
2.CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (1)
1. Check voltage between EPS control unit harness connector terminals and ground.

CAUTION: Never start the engine.

Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (2)
Is the inspection result normal? YES >> Perform the trouble diagnosis for ignition power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".
NO >> Repair or replace malfunctioning parts.
4.CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (3)

CAUTION: Never start the engine.

Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 5.
5.CHECK EPS CONTROL UNIT POWER SUPPLY CIRCUIT (4)
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".
NO >> Repair or replace malfunctioning parts.
6.CHECK TERMINALS AND HARNESS CONNECTORS
Check the EPS control unit pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> EPS control unit is malfunctioning. Replace steering column assembly. Refer to STC-36, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
C1604 torque sensorUsing the system
The NISSAN Voice Recognition system allows
hands-free operation of the Bluetooth® Hands-
Free Phone System.
If the vehicle is in motion, some commands may
not be available so full attention may be given to
vehicle operation.
Initialization
When the ignition switch is placed in the ON
posi ...
How to enable/disable the sonar system
Steering-wheel-mounted control (left side)
Vehicle information display
The sonar system activates automatically when the ignition switch is in the ON position and the shift lever is in D (Drive) or R (Reverse).
To set up sonar system functions, follow these steps:
1. Press the
button un ...
Symptom diagnosis
ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VEHICLE
Description
Engine does not start when push-button ignition switch is pressed while
carrying Intelligent Key.
NOTE:
Check that vehicle is under the condition shown in “Conditions
of vehicle” before starting diagnos ...