Appendix D: Final Quality Checks
APPENDIX D: FINAL QUALITY CHECKS (used only when engine is replaced)1. Test drive the vehicle:
^ Drive where you can maintain at least 40 mph for 1 minute (this is required for CONSULT-II diagnosis later).
^ For vehicles with A/T: Make sure the "Kick Down" functions correctly and other shift points are normal.
^ Check instruments for correct operation (speedometer, tachometer, temperature gauge etc.).
2. ASCD operation test (if equipped):
a. Drive vehicle in an area where ASCD can be used.
b. Set the ASCD.
c. When traffic conditions allow, shift A/T to neutral (N), or depress the clutch pedal for M/T. Make sure ASCD is canceled.
^ If the ASCD is not canceled when shifting to N, adjust shifter cable or repair the ASCD system as needed. See Service Manual for repair information.
NOTE:
Immediately after the test drive perform the following tests.
3. Attach CONSULT-II to the vehicles OBD-II connector port.
a. Turn the ignition ON.
^ CONSULT-II will turn on automatically.
b. Select START (NISSAN BASED VEHICLES).
c. CONSULT will display the systems shown in Figure G2.
4. Erase any DTC(s) stored in each CONSULT-II compatible system.
For each system displayed in Figure G2:
a. Select the system (Engine, A/T, ABS, etc).
b. Select SELF-DIAG RESULTS
c. Press [ERASE] and [OK]
d. Press [BACK] two times.
e. Repeat a through d for each system.
5. Valve Timing Control (VTC) test:
NOTE:
^ During the test drive in step 1, you should have maintained at least 40 mph for 1 minute (this is required for the following CONSULT-II diagnosis).
^ CONSULT-II should be connected and the engine running.
a. On CONSULT-II, select [ENGINE] > [DATA MONITOR] > [SELECT FROM MENU]
b. Select [INT/V TIM(B1)] and [INT/V SOL(B1)]
c. Press [START]
d. At idle:
^ INT/V TIM(B1) should be 1-2 CA
^ INT/V SOL(B1) should be 0%
f. Rev engine to 2500 rpm. Make sure VTC signals are changing.
^ If signals are changing, test is OK. Figure G3
^ If signals are not changing, repair VTC as needed. See Service Manual for repair information.
6. A/F (Air/Fuel) Sensor test:
a. On CONSULT-II, press [BACK] 4 times to return to the Select System screen.
b. Select [ENGINE] > [DATA MONITOR] > [SELECT FROM MENU]
c. Select [A/F SEN 1 (B1)]
d. Press [START]
e. At idle, A/F SEN 1 should be approximately 1.4 V.
f. Rev engine to 2500 rpm. Make sure A/F sensor voltage is changing.
^ If voltage is changing, test is OK.
^ If voltage is not changing, repair A/F sensor as needed. See Service Manual for repair information.
7. EVAP test
a. On CONSULT-II, press BACK 4 times to return to the Select System screen.
b. Select ENGINE > ACTIVE TEST > PURG VOL CONT/V
c. Select SELECT FROM MENU > EVAP SYS PRES
d. Press START
e. At idle, PSI should be approximately 4.06V.
f. Use Qu to increase steps to 60. Voltage should be approximately 4.00 V.
^ If signal changes, test is OK.
^ If signal does not change, repair EVAP system as needed. See Service Manual for repair information.
8. Rear O2 Sensor test:
NOTE:
Engine must be running for longer then 3 minutes before performing this test.
a. On CONSULT-II, press [BACK] 4 times to return to the Select System screen.
b. Select [ENGINE] > [DATA MONITOR] > [SELECT FROM MENU]
c. Select [HO2S2 (B1)]
d. Press [START]
e. Rev engine to 2500 rpm. Make sure HO2S2 (B1) voltage is changing.
^ If voltage is changing, test is OK.
^ If voltage is not changing, repair rear O2 sensor as needed. See Service Manual for repair information.
9. Idle Air Volume Lean:
a. On CONSULT-II, press [BACK] 4 times to return to the Select System screen.
b. Select [ENGINE] > [DATA MONITOR] > [SELECT FROM MENU]
c. Select [COOLAN TEMP/S]
d. Press [START]
e. At idle, make sure COOLAN TEMP/S is reading between 70°C and 95°C (158°F and 203°F).
^ If temperature reading is above 95°C (203°F), turn HVAC system to MAX heat (AC OFF) and blower motor on high.
^ Let engine idle at a fast idle speed (1500 rpm) in a shaded area until the engine cools to 95°C (203°F) or less.
f. Press [BACK] 3 times to return to the Select Diag Mode screen.
g. Select [WORK SUPPORT] > [IDLE AIR VOL LEARN]
h. Press [START]
i. Press [START] again
j. Wait until CONSULT-II shows CMPLT in the upper right hand corner of the screen.
10. Recheck for DTCs:
For each system displayed in Figure G9:
a. Select a system (Engine, A/T, ABS, etc).
b. Select [SELF-DIAG RESULTS]
If DTC is stored:
^ PRINT the data.
^ Repair the DTC as needed. See Service Manual for DTC repair information.
c. Press [ERASE] and [OK]
d. Press [BACK] two times.
e. Repeat a through d for each system.