Nissan Rogue Service Manual: Ecu diagnosis information
ECM
Reference Value
VALUES ON THE DIAGNOSIS TOOL
NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
- Numerical values in the following table are reference values.
- These values are input/output values that ECM receives/transmits and may differ from actual operations.
Example:
The ignition timing shown by the timing light may differ from the ignition
timing displayed on the data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from the cam shaft position sensor and other sensors related to ignition timing.
*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from ECM terminals voltage signal.
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
- ECM is located in the engine room left side near battery.
- Specification data are reference values and are measured between each terminal and ground.
- Pulse signal is measured by CONSULT.
: Average voltage for pulse
signal (Actual pulse signal can be confirmed by oscilloscope.)
Fail Safe
NON DTC RELATED ITEM
| Detected items | Engine operating condition in fail-safe mode | Remarks |
| Malfunction indicator lamp circuit | Engine speed will not rise more than 2,500 rpm due to the fuel cut | When there is an open circuit on MIL circuit, the ECM cannot warn
the
driver by lighting up MIL when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means of operating fail safe function. The fail safe function also operates when above diagnoses except MIL circuit are detected and demands the driver to repair the malfunction. |
DTC RELATED ITEM
Description
When a DTC is detected, ECM executes a mode (in the Fail-safe mode) applicable to the DTC. The fail-safe mode has the preset traveling control mode (accelerator angle variation and engine output limit) and device fix mode
| Fail safe mode | Vehicle behavior | |
| Traveling control mode | Accelerator angle variation control | ECM controls the accelerator pedal depression speed to make it
slower than actual speed. This
causes a drop in accelerating performance and encourages the driver to
repair malfunction.
NOTE: ECM does not control the accelerator pedal releasing speed. |
| Engine output control | ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction. | |
| Device fix mode |
|
|
Fail Safe Pattern
Fail Safe List
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.
DTC Index
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J1979/ ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is
controlled by NISSAN.
*4: Refer to EC-151, "Description".
*5: The troubleshooting for this DTC needs CONSULT.
*6: When the ECM is in the mode that displays SRT status, MIL may blink. For
details, Refer to EC-64, "On Board Diagnosis Function".
*7: SRT code will not be set if the self-diagnostic result is NG.
*8: When the fail-safe operations for both self-diagnoses occur, the MIL
illuminates.
*9: This self-diagnosis is not for ECM power supply circuit, even though “ECM
BACK UP/CIRCUIT” is displayed on CONSULT screen.
Test Value and Test Limit
The following is the information specified in Service $06 of SAE J1979/ISO 15031-5.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by On Board Monitor ID (OBDMID), Test ID (TID), Unit and Scaling ID and can be displayed on the GST screen.
The items of the test value and test limit will be displayed with GST screen which items are provided by the ECM. (e.g., if bank 2 is not applied on this vehicle, only the items of bank 1 are displayed)
Diagnosis system (ECM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1st Trip Detection Logic and Two Trip Detection
Logic
When a malfunction is detected for the first time, 1st trip DTC and 1st trip
Freeze Frame data ...
Wiring diagram
ENGINE CONTROL SYSTEM
Wiring Diagram
...
Other materials:
System description
COMPONENT PARTS
POWER DOOR LOCK SYSTEM
POWER DOOR LOCK SYSTEM : Component Parts Location
No
Component
Function
1
BCM
Controls the door lock system.
Refer to BCS-7, "BODY CONTROL SYSTEM : Component Parts Location" for
detailed
install ...
Uniform tire quality grading
DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 ...
Doors
When the doors are locked using one of the
following methods, the doors cannot be opened
using the inside or outside door handles. The
doors must be unlocked to open the doors.
WARNING
Always have the doors locked while
driving. Along with the use of seat belts,
this pro ...
