Nissan Sentra Service Manual: C1607, C1608 EPS Control unit
DTC Logic
DTC DETECTION LOGIC
| Dtc | Display item | Malfunction detected condition | Possible cause |
| C1607 | EEPROM | When the memory (EEPROM) system malfunction is detected in EPS control unit. | Eps control unit |
| C1608 | CONTROL UNIT | When the internal malfunction is detected in EPS control unit. |
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 c1607 or c1608 detected? Yes >> proceed to diagnosis procedure. Refer to stc-28, "diagnosis procedure".
No >> inspection end.
Diagnosis Procedure
1.CHECK TERMINALS AND HARNESS CONNECTORS
Check eps control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace the malfunctioning parts.
Is the inspection result normal? Yes >> go to 2.
No >> repair or replace the malfunctioning parts.
2.Perform self-diagnosis
With consult
-
Erase self-diagnostic results for EPS.
-
Turn the ignition switch OFF, and then wait 10 seconds and more.
-
Perform self-diagnosis for EPS.
Is DTC C1607 or C1608 detected? YES >> Replace EPS control unit. Refer to STC-39, "Removal and Installation".
NO >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
C1606 EPS Motor
DTC Logic
DTC DETECTION LOGIC
Dtc
Display item
Malfunction detected condition
Possible cause
C1606
EPS MOTOR
When the motor driver malfunction of EPS control
unit o ...
C1609 Vehicle speed signal
DTC Logic
Dtc detection logic
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
Malfunction is detected in vehicle speed sig ...
Other materials:
Roof side molding
Exploded view
Roof side molding
Roof side molding clip
Roof panel
Body side outer panel
Adhesive tape
Removal and installation
REMOVAL
ROOF SIDE MOLDING
Release roof side molding rear side clip, using a suitable tool
(A).
Clip
Front
CAUTION:
Apply protective tape ...
System description
Component parts
Component parts location
Ipdm e/r (contains ignition relay-1)
Bcm (view with instrument panel removed)
Fuse block (j/b) (front)
Fuse block (j/b) (back)
Blower relay
Ignition relay-2
Accessory relay-1
Push-button ignition switch
Component description
...
Avoiding collision and rollover
WARNINGFailure to operate this vehicle in a safe
and prudent manner may result in loss of
control or an accident.
Be alert and drive defensively at all times. Obey
all traffic regulations. Avoid excessive speed,
high speed cornering, or sudden steering maneuvers,
because these ...