Nissan Murano: Dtc/circuit Diagnosis / P0863 Tcm Communication
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms
(Trouble diagnosis content) |
DTC detection condition |
| P0863 |
CONTROL UNIT (CAN)
(TCM Communication Circuit) |
Diagnosis condition |
Engine is started |
| Signal |
— |
| Threshold |
An error is detected at the initial CAN diagnosis of TCM |
| Diagnosis delay time |
Within 1 second |
POSSIBLE CAUSE
TCM
FAIL-SAFE
-
Selector shock is large
-
Start is slow
-
Acceleration is slow
-
Lock-up is not performed
DTC Confirmation Procedure
PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>>
GO TO 2.
CHECK DTC DETECTION
-
Start the engine.
-
Check the DTC.
Is “P0863” detected?
YES>>
Go to Diagnosis Procedure.
NO-1>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>
Confirmation after repair: INSPECTION END
Diagnosis Procedure
CHECK INTERMITTENT INCIDNT
Refer to Intermittent Incident.
Is the inspection result normal?
YES>>
Replace TCM. Refer to Removal and Installation.
NO>>
Repair or replace malfunctioning parts.
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0847
FLUID PRESS SEN/SW B
(Transmission Fluid Pressure Sensor/Switch B Circuit Low)
Diagnosis condition
When all of the following conditions are satisfied:
CVT fluid temperature: More than −20°C (−4°F)
TCM power supply voltage: 11 V or more
Signal
—
Threshold
Secondary pressure sensor voltage: 0...
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0890
TCM
(Transmission Control Module Power Relay Sense Circuit Low)
Diagnosis condition
TCM power supply voltage: More than 11 V
Signal
—
Threshold
Battery voltage: Less than 8...
Other information:
Reference Value
TERMINAL LAYOUTPHYSICAL VALUES
Terminal No.
(Wire color) Description Condition
Voltage
(Approx.)
(+) (–) Signal name Input/Output
1
(L)
Ground
Serial communication
Input/Output
—
—
2
(V)
Ground
Power supply (BAT)
Input
—
Battery voltage
3
(B)
Ground
Ground
—
—
0 V
4
(W)
Ground
Motion activated back door sensor (upper) input signal
Input
—
—
5
(W)
Ground
Motion activated back door sensor (upper) output signal
Input
—
—
6
(W)
Ground
Motion activated back door sensor (lower) input signal
Input
—
—
7
(W)
Ground
Motion activated back door sensor (lower) output signal
Input
—
—
NOTE:
Voltage generated in communication circuit between motion activated back door sensor and motion activated back door control unit is extremely low and therefore cannot be measured...
Removal and Installation
REMOVALDischarge the refrigerant. Refer to Recycle Refrigerant.
Remove the engine room cover. Refer to Removal and Installation.
Remove the torque member bolts. Refer to Exploded View.
Position the brake caliper assembly aside using wire...