Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit
Diagnosis Procedure
CHECK FUSIBLE LINKS
Check that the following fusible links are not blown:
| Terminal | Signal name | Fusible link No. | Capacity |
| 1 |
Battery power supply |
E |
80 A |
| 2 |
A |
250 A |
| C |
80 A |
| 3 |
A |
250 A |
| B |
100 A |
| N |
40 A |
Is the fusible link blown?
YES>>
Replace the blown fusible link after repairing the affected circuit.
NO>>
GO TO 2.
CHECK POWER SUPPLY CIRCUIT
-
Disconnect IPDM E/R connectors.
-
Check voltage between IPDM E/R harness connectors and ground.
| IPDM E/R |
— |
Voltage
(Approx.) |
| Connector |
Terminal |
| E118 |
1 |
Ground |
Battery voltage |
| 2 |
| E120 |
3 |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair or replace harness or connectors.
CHECK GROUND CIRCUIT
-
Disconnect IPDM E/R connectors.
-
Check continuity between IPDM E/R harness connectors and ground.
| IPDM E/R |
— |
Continuity |
| Connector |
Terminal |
| E121 |
7 |
Ground |
Yes |
| E119 |
41 |
Is the inspection result normal?
YES>>
Inspection End.
NO>>
Repair or replace harness or connectors.
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B2099
IGN RELAY OFF CIRC
(Ignition relay OFF circuit)
Diagnosis condition
When ignition switch ON...
Exploded View
1.
IPDM E/R
2.
IPDM E/R Case
Removal and Installation
CAUTION:
IPDM E/R integrated relays are not serviceable parts, and must not be removed from the unit...
Other information:
DTC Description
DTC DETECTION LOGICWhen the ignition switch is ON, the data length transmitted from each control unit is shorter than the specified length and the status continues for 2 seconds or more. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0300
CAN COMM DATA
(Internal Control Module Software Incompatibility)
Diagnosis condition
When the ignition switch is ON
Signal
CAN communication data
Threshold
The data length transmitted from each control unit is shorter than the specified length and the status
Diagnosis delay time
Continues for 2 seconds or more
POSSIBLE CAUSEControl unit other than TCMFAIL-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...
DTC Description
NOTE:
The customer reports CVT judder (shake, shudder, single or multiple bumps or vibration) hesitation on acceleration, lack of power or RPM flare. If DTC P17F0 is detected on his/her Nissan Murano vehicle, this diagnosis is required...