NOTE:
The Signal Tech II Tool [– (J-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTCs
Register TPMS sensor IDs
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| C1708 |
[NO DATA] FL (No data front left) |
Diagnosis condition | When ignition switch ON. |
| Signal (terminal) |
|
||
| Threshold | Tire pressure data signal from the front LH wheel tire pressure sensor cannot be detected. | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
Driving in area with radio interference.
ID registration incomplete
Tire pressure sensor
Harness or connectors
Remote keyless entry receiver
BCM
FAIL-SAFE
—
PERFORM SELF DIAGNOSTIC RESULT
CONSULT
Perform tire pressure sensor ID registration. Refer to Work Procedure.
Drive at a speed of 25 MPH (40 km/h) or more for 3 minutes, and then drive the Nissan Murano vehicle at any speed for 10 minutes.
NOTE:
Avoid driving in areas with radio interference.
Select “Self Diagnostic Result” mode of "BCM(AIR PRESSURE MONITOR)".
Check DTC.
Is DTC C1708 detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>Inspection End.
NOTE:
The Signal Tech II Tool [– (J-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTCs
Register TPMS sensor IDs
CHECK TIRE PRESSURE SIGNAL
CONSULT
Select “Data Monitor” mode of "BCM(AIR PRESSURE MONITOR)”.
Check that the air pressures match the specified value.
| Monitor item | Displayed value |
|---|---|
| AIR PRESS FL | Approximately equal to specified value. Refer to Tire Air Pressure. |
| AIR PRESS FR | |
| AIR PRESS RR | |
| AIR PRESS RL |
Are all tire pressures displayed 0 psi (kPa)?
YES>>GO TO 2.
NO>>Replace applicable tire pressure sensor. Refer to Removal and Installation.
CHECK REMOTE KEYLESS ENTRY RECEIVER POWER CIRCUIT
Check voltage between remote keyless entry receiver harness connector and ground.
| (+) | (—) |
Voltage (Approx.) | |
|---|---|---|---|
| Remote keyless entry receiver | |||
| Connector | Terminal | ||
| M86 | 1 | Ground | Battery voltage |
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair or replace harness or connectors.
CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL
Ignition switch ON.
Check signal between remote keyless entry receiver harness connector and ground with an oscilloscope.
| (+) | (—) | Condition |
Voltage (Approx.) | |
|---|---|---|---|---|
| Remote keyless entry receiver | ||||
| Connector | Terminal | |||
| M86 | 2 | Ground | Standby state |
|
| When receiving the signal from the tire pressure sensor |
|
|||
Is the inspection result normal?
YES>>GO TO 6.
NO>>GO TO 4.
CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT
Ignition switch OFF.
Disconnect BCM connector and remote keyless entry receiver connector.
Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
| BCM | Remote keyless entry receiver | Continuity | ||
|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | |
| M80 | 119 | M86 | 2 | Yes |
Check continuity between BCM harness connector and ground.
| BCM | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| M80 | 119 | Ground | No |
Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace harness or connectors.
CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
Check continuity between remote keyless entry receiver harness connector and ground.
| Remote keyless entry receiver | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| M86 | 3 | Ground | Yes |
Is the inspection result normal?
YES>>Replace the remote keyless entry receiver. Refer to Removal and Installation.
NO>>Repair or replace harness or connectors.
TIRE PRESSURE SENSOR ID REGISTRATION
Perform tire pressure sensor ID registration. Refer to Work Procedure.
Can the tire pressure sensor ID registration be completed?
YES>>GO TO 7.
NO>>Replace applicable tire pressure sensor. Refer to Removal and Installation.
RECHECK TIRE PRESSURE SIGNAL
CONSULT
Drive at a speed of 25 MPH (40 km/h) or more for 3 minutes, and then drive the Nissan Murano vehicle at any speed for 10 minutes.
Select “Data Monitor” mode of "BCM(AIR PRESSURE MONITOR)”.
Check that the air pressures match the specified value.
| Monitor item | Displayed value |
|---|---|
| AIR PRESS FL | Approximately equal to specified value. Refer to Tire Air Pressure. |
| AIR PRESS FR | |
| AIR PRESS RR | |
| AIR PRESS RL |
Does Data Monitor display specified value without turning tire pressure warning lamp ON?
YES>>Inspection End.
NO>>Replace BCM. Refer to Removal and Installation.
C1704 Low Pressure Fl
C1729 Vhcl Speed Sig ErrUnfastening the seat belts

To unfasten the seat belt, press the button
on the buckle
. The seat belt
automatically
retracts.