Diagnosis and Repair Work Flow. Work Flow. Work Flow

Work Flow

OVERALL SEQUENCE

The Signal Tech II Tool [– (NI-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

DETAILED FLOW

1. INTERVIEW FROM THE CUSTOMER

   1. Clarify customer complaints before inspection. To do so, reproduce the symptom before hand and fully understand it. Then interview the customer thoroughly. Check the symptoms by driving Nissan Sentra vehicle with the customer, if necessary.

      CAUTION:

      Customers are not professional. Never guess easily like “maybe the customer means that...,” or “ maybe the customer mentions this symptom”.

   >>

   GO TO 2.

2. CHECK TIRE PRESSURE WARNING LAMP FUNCTION

   1. Check that tire pressure warning lamp in combination meter.

   Tire pressure warning lamp turn ON?

   YES >>

   GO TO 3.

   NO >>

   GO TO 6.

3. CHECK TIRE PRESSURE

   1. Check the tire pressure of all wheels. Refer to Tire Air Pressure.

      Note:

      Check the tire pressure of cold condition.

   Is the inspection standard value?

   YES >>

   GO TO 6.

   NO >>

   GO TO 4.

4. ADJUST TIRE PRESSURE

   1. 1. Check and adjust the tire pressure for all wheels specified to the value. Refer to Tire Air Pressure.

      2. Drive the Nissan Sentra vehicle at 25 MPH (40 km/h) or more reaches 10 minuets in total.

   Tire pressure warning lamp turn OFF?

   YES >>

   GO TO 5.

   NO >>

   GO TO 6.

5. CHECK AIR LEAK

   1. Using soapsuds etc., check air leak.

      Note:

      Check air valve.

   Is air leak detected?

   YES >>

   Repair or replace error-detected parts. Replace the grommet seal. Perform tire pressure sensor ID registration. Refer to Work Procedure.

   NO >>

   GO TO 10.

6. PERFORM SELF-DIAGNOSIS

   1. CONSULT

      Select “Self Diagnostic Result” mode of “BCM(AIR PRESSURE MONITOR)”.

   Is DTC detected?

   YES >>

   Record or print self-diagnosis results and freeze frame data (FFD). GO TO 8.

   NO >>

   GO TO 7.

7. CONFIRM THE SYMPTOM

   1. Perform symptom diagnosis. Refer to Symptom Table.

   >>

   Repair or replace error-detected parts. GO TO 10.

8. PERFORM DTC CONFIRMATION PROCEDURE

   1. CONSULT

      Perform Confirmation Procedure for the detected DTC, and then check that DTC is detected again.

   Is DTC detected?

   YES >>

   GO TO 9.

   NO >>

   Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident.

9. DIAGNOSIS PROCEDURE

   1. Perform DTC Diagnosis Procedure.

   >>

   Repair or replace error-detected parts. GO TO 10 .

10. FINAL CHECK

    1. Recheck the symptom and check that the symptom is not reproduced on the same conditions.

    Is the symptom reproduced?

    YES >>

    GO TO 2.

    NO >>

    Inspection End.

Id Registration Procedure. Description

Description

This procedure must be performed after replacement of a tire pressure sensor or BCM.

Work Procedure

Work Procedure

TPMS ID registration can be performed using one of the following procedures:

• Transmitter Activation tool [KV48105501 (NI-45295-A)] using CONSULT (preferred method)

• Signal Tech II tool [– (NI-50190)] using CONSULT (preferred method)

• Signal Tech II tool [– (NI-50190)] without CONSULT

• CONSULT only

TPMS REGISTRATION WITH TRANSMITTER ACTIVATION TOOL [KV48105501 (NI-45295-A)]

CONSULT

1. Ignition switch ON.

2. Select “Work support” mode of “BCM(AIR PRESSURE MONITOR)”. Then, select “ID REGIST.”

3. Select “Start” on “ID REGIST” screen.

4. Hold the transmitter activation tool [KV48105501 (NI-45295-A)] (1) against the side of the left front tire, near the valve stem.

   

5. With the tool held at a 0 to 15 degree angle to the tire, press and hold the transmitter activation tool button until the indicator lamp turns OFF (approximately 5 seconds).

6. Repeat steps 4 and 5 for the remaining tires in this order: right front, right rear and left rear.

7. When ID registration is complete, check the following pattern at each wheel:

   Sequence	ID registration position	Turn signal lamp	CONSULT
   1	Front LH	2 blinks	“Yet (red)” ↓ “Done (green)”
   2	Front RH
   3	Rear RH
   4	Rear LH

8. After the ID registration procedure for all wheels is complete, select “End” to finish ID registration.

9. Test drive the Nissan Sentra vehicle to ensure that the TPMS lamp is OFF and no warning messages are present.

TPMS REGISTRATION WITH SIGNAL TECH II TOOL [– (NI-50190)]

The Signal Tech II must be updated with the newest software version in order to perform the below procedures. The Signal Tech II software updates can only be downloaded from a CONSULT unit with ASIST. Other versions of ASIST will not show the updates.

CONSULT

1. Adjust the tire pressure for all tires to the recommended value. Refer to Tire Air Pressure.

2. Ignition switch ON.

3. Select “Work support” mode of “BCM(AIR PRESSURE MONITOR)”. Then, select “ID REGIST.”

4. Select “Start” on “ID REGIST” screen.

5. Turn on the Signal Tech II tool [– (NI-50190)].

6. Hold the Signal Tech II against the side of the left front tire, near the valve stem.

   

7. With the tool held at a 0 to 15 degree angle to the tire, select “Activate Sensor” from the main menu, then press and release the “OK” button to activate the sensor. Once the sensor is activated, the Nissan Sentra vehicle parking lamps will flash and the sensor ID will appear on the CONSULT screen.

8. Repeat steps 6 and 7 for the remaining tires in this order: right front, right rear and left rear.

9. When ID registration is complete, check the following pattern at each wheel:

   Sequence	ID registration position	Turn signal lamp	CONSULT
   1	Front LH	2 blinks	“Yet (red)” ↓ “Done (green)”
   2	Front RH
   3	Rear RH
   4	Rear LH

10. Once all sensors have been activated, select “End” to finish ID registration.

11. Test drive the Nissan Sentra vehicle to ensure that the TPMS lamp is OFF and no warning messages are present.

CONSULT

1. Adjust the tire pressure for all tires to the recommended value. Refer to Tire Air Pressure.

2. Turn on the Signal Tech II tool [– (NI-50190)] and select “TPMS Check” from the main menu.

3. Select Nissan Sentra vehicle model and year.

4. When prompted, hold the Signal Tech II against the side of the left front tire, near the valve stem.

   

5. With the tool held at a 0 to 15 degree angle to the tire, press and release the “OK” button to activate the sensor. Once the sensor is activated, the tool will sound a tone and the tire pressure will be displayed.

6. Repeat steps 4 and 5 for the remaining tires in this order: right front, right rear and left rear.

7. When prompted, connect the tool to the data link connector. The tool will connect to the BCM, read the VIN, read sensor IDs and check for TPMS DTCs. Along with DTCs detected, one of the following will be displayed next to each wheel:

   • N/A - Not applicable because no ID found by the tool

   • OK - Wheel and sensor are in original position

   • NEW - New ID found compared to BCM

   • RT - Wheel has been rotated

   • Low Press - Low tire pressure

8. If no DTC is present or the repair has been completed, press the “OK” button to register the IDs and clear DTCs.

9. Test drive the Nissan Sentra vehicle to ensure that the TPMS lamp is OFF and no warning messages are present.

10. Print a Signal Tech II Audit Report for your records. Refer to the Signal Tech II User Guide for instructions.

TPMS REGISTRATION WITH CONSULT ONLY

CONSULT

1. Adjust the tire pressure for all wheels to match the list below:

   Tire position	Tire pressure psi (kPa, kg/cm2)
   Front LH	35 (240, 2.4)
   Front RH	32 (220, 2.2)
   Rear RH	29 (200, 2.0)
   Rear LH	26 (180, 1.8)

2. Ignition switch ON.

3. Select “Work support” mode of “BCM(AIR PRESSURE MONITOR)”. Then, select “ID REGIST.”

4. Select “Start” on “ID REGIST” screen.

5. Drive the Nissan Sentra vehicle at a speed greater than 25 MPH (40 km/h) for 3 minutes or more.

6. After ID registration for all wheels is complete, select “End” to finish ID registration.

   ID registration position	CONSULT
   Front LH	“Yet (red)” ↓ “Done (green)”
   Front RH
   Rear RH
   Rear LH

7. Adjust the tire pressures for all tires to the recommended value. Refer to Tire Air Pressure.

8. Test drive the Nissan Sentra vehicle to ensure that the TPMS lamp is OFF and no warning messages are present.