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:
How to use this manual
Description
This volume explains “Removal, Disassembly, Installation, Inspection and
Adjustment” and “Trouble Diagnoses”.
Terms
The captions WARNING and CAUTION warn you of steps that must be followed
to prevent personal injury
and/or damage to some part of the vehi ...
Basic inspection
Diagnosis and repair workflow
Work flow
Overall sequence
Detailed flow
1.Obtain information about symptom
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.Check symptom
...
Precaution for supplemental restraint system (srs) "air bag" and "seat belt
pre-tensioner"
The supplemental restraint system such as “air bag” and “seat belt pre-tensioner”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
