Nissan Sentra Service Manual: C1604 Torque sensor
DTC Logic
DTC DETECTION LOGIC
| DTC | Display item | Malfunction detected condition | Possible cause |
| C1604 | TORQUE SENSOR | When torque sensor output signal is malfunctioning |
|
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
-
Turn the ignition switch OFF to ON.
-
Perform EPS self-diagnosis.
Is DTC “C1604” detected? YES >> Proceed to diagnosis procedure. Refer to STC-25, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STC-15, "Wiring Diagram".
1.Check torque sensor power supply circuit
-
Turn ignition switch ON.
-
Check voltage between EPS control unit harness connector terminals and ground.
CAUTION:
Steering wheel is neutral position. (There is no steering force.)
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform the trouble diagnosis for battery power supply circuit. Refer to STC-22, "Diagnosis Procedure".
2.Check torque sensor ground circuit
-
Turn ignition switch OFF.
-
Check continuity between eps control unit harness connector terminal and ground.
Caution:
Steering wheel is neutral position. (There is no steering force.)
Is the inspection result normal? Yes >> go to 3.
No >> repair open circuit or short to ground or short to power in harness or connectors.
3.Check torque sensor signal
-
Turn ignition switch off to on.
-
Check voltage between eps control unit harness connector terminal and ground.
Caution:
Steering wheel is neutral position. (There is no steering force.)
-
Start the engine.
-
Check voltage between EPS control unit harness connector terminal and ground.
CAUTION:
Steering wheel is right or left turn.
Is the inspection result normal? Yes >> go to 4.
No >> torque sensor is malfunction. Replace steering column assembly. Refer to st-12, "removal and installation".
4.Check connector
-
Turn ignition switch off.
-
Disconnect eps control unit harness connector.
-
Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
Is the inspection result normal? Yes >> replace eps control unit. Refer to stc-39, "removal and installation".
No >> repair or replace the malfunctioning parts.
C1601 Battery power supply
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
...
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DTC DETECTION LOGIC
Dtc
Display item
Malfunction detected condition
Possible cause
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EPS MOTOR
When the motor driver malfunction of EPS control
unit o ...
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DTC Logic
DTC DETECTION LOGIC
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canister purge volume control solenoid
valve, using the negative pressure caused by decrease of fuel temperature in the
fuel tank after turning
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If ECM judges there a ...
Tightening Torque Table (New Standard Included)
CAUTION:
The special parts are excluded.
The bolts/nuts in these tables have a strength (discrimination)
number/symbol assigned to the head
or the like. As to the relation between the strength grade in these tables
and the strength (discrimination)
number/symbol, refer to “DISCR ...
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DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P2014, P2016, P2017 or P2018 is displayed with DTC P0643, first
perform the trouble diagnosis
for DTC P0643. Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P ...
