2006 NISSAN VERSA check engine

BL-220
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
WORK FLOW
1. STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> System is normal.
NG >> GO TO 2.
2. PERFORM SELF DIAGNOSIS
Perform SELF-DIAGNOSIS “NATS V5.0” using CONSULT-II.
NOTE:
NATS program card is necessary to display the “SELF-DIAGNOSIS”.
No malfunction is detected>>Recheck the starting engine section GO TO 1.
Malfunction related to NATS is detected>>GO TO 3.
Malfunctions related to “DON’T ERASE BEFORE CHECKING ENG DIAG” and NATS are detected>>GO
TO 7.
3. IDENTIFYING NATS MALFUNCTION
Self-diagnosis results referring to NATS, but no information about engine self-diagnosis result is displayed on
CONSULT-II. Refer to BL-222, "
SYMPTOM MATRIX CHART 1" .
>> GO TO 4.
4. NATS TROUBLE DIAGNOSIS
Repair NATS (if necessary, perform “C/U INITIALZATIN” with CONSULT-II.)
>> GO TO 5.
5. ERASE SELF-DIAGNOSIS
Erase the record of “SELF-DIAGNOSIS” by using CONSULT-II.
>> GO TO 6.
6. STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
NG >> GO TO 2.
OK >> End of inspection.
7. IDENTIFYING NATS AND ENGINE CONTROL MALFUNCTION
NATS malfunction and “DON’T ERASE BEFORE CHECKING ENG DIAG” are displayed on the CONSULT-II
screen.
NOTE:
This indication means that malfunction have been detected in NATS and engine control system.
>> GO TO 8.

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-221
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Revision: June 20062007 Versa
8. NATS TROUBLE DIAGNOSIS
Repair NATS according to self-diagnosis results refer to NATS (if necessary, perform “C/U INITIALZATIN” with
CONSULT-II.)
NOTE:
Do not erase “SELF-DIAGNOSIS” by using CONSULT-II.
>> GO TO 9.
9. IDENTIFYING ENGINE CONTROL MALFUNCTION
Check engine “SELF-DIAGNOSIS” records with a generalized program card instead of the NATS program
card.
>> GO TO 10.
10. ENGINE CONTROL SYSTEM TROUBLE DIAGNOSIS
Repair engine control system if engine related malfunction is detected.
With engine diagnostic codes present, refer to EC-8, "
INDEX FOR DTC" .
Without engine diagnostic codes present, refer to EC-83, "
TROUBLE DIAGNOSIS" .
NOTE:
If only “NATS MALFUNCTION” is displayed, erase the self-diagnosis results.
>> GO TO 11.
11 . STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> GO TO 12.
NG >> GO TO 2.
12. ERASE SELF-DIAGNOSIS
Erase both NATS and ENGINE "SELF-DIAGNOSIS" records by using CONSULT-II NATS program card and
generalized program card.
>> GO TO 13
13. COMFIRMATION
Perform running test with CONSULT-II in engine “SELF-DIAGNOSIS” mode.
“NO DTC” is displayed>> End of inspection.
Malfunction information is displayed>> GO TO 2.

BL-222
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
Trouble DiagnosesEIS0093X
SYMPTOM MATRIX CHART 1
Self-diagnosis related item

*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
SYMPTOM MATRIX CHART 2
Non self-diagnosis related item
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”. SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or mode)

Security indicator
lighting up*

Engine cannot be
startedCHAIN OF ECM-IMMU
[P1612]PROCEDURE 1
(BL-223
)In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.
Open circuit in battery voltage line of BCM circuit
Open circuit in ignition line of BCM circuit
Open circuit in ground line of BCM circuit
Open or short circuit between BCM and ECM commu-
nication line
ECM
BCM
CHAIN OF IMMU-KEY
[P1614]PROCEDURE 2
(BL-225
)Malfunction of key ID chip
Communication line between ANT/ AMP and BCM:
Open circuit or short circuit of battery voltage line or
ground line
Open circuit in power source line of ANT/ AMP circuit
Open circuit in ground line of ANT/ AMP circuit
NATS antenna amp.
BCM
ID DISCORD, IMM-
ECM
[P1611]PROCEDURE 3
(BL-227
)System initialization has not yet been completed.
ECM
LOCK MODE
[P1610]PROCEDURE 5
(BL-229
)When the starting operation is carried out five or more
times consecutively under the following conditions,
NATS will shift the mode to one which prevents the
engine from being started.

Unregistered ignition key is used.

BCM or ECM’s malfunctioning.
Security indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(BL-220
)Engine trouble data and NATS trouble data have been
detected in ECM
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)
Security indicator does not light up*.PROCEDURE 4
(BL-228
)Security indictor.
Open circuit between Fuse and BCM
BCM

BL-224
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
4. CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5. REPLACE BCM
1. Replace BCM
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
Does the engine start?
Yes >> BCM is malfunctioning.

Replace BCM. Refer to BCS-25, "Removal and Installation of BCM" .

Perform initialization with CONSULT-II

For initialization, refer to “CONSULT-II Operation Manual NATS”
No >> ECM is malfunctioning.

Replace ECM.

Perform initialization or re-communicating function

For initialization, refer to “CONSULT-II Operation Manual NATS”

For re-communicating function, refer to BL-214, "ECM Re-communicating Function"
BCM connectorTe r m i n a l
Continuity
(+) (–)
M20 67 Ground Yes
PIIB6588E

NATS (NISSAN ANTI-THEFT SYSTEM)
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Revision: June 20062007 Versa
Diagnostic Procedure 2EIS0093Z
Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY”
displayed on CONSULT-II screen.
Is CONSULT-II screen displayed as shown in figure?
Yes >> GO TO 2.
No >> GO TO BL-222, "
SYMPTOM MATRIX CHART 1" .
2. CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-230, "
How to Replace NATS Antenna Amp." .
OK or NG
OK >> GO TO 3.
NG >> Reinstall NATS antenna amp. correctly.
3. CHECK NATS IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.
Does the engine start?
Yes >> Ignition key ID chip is malfunctioning.

Replace the ignition key

Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II Operation Manual NATS”
No >> GO TO 4.
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
1. Turn ignition switch “OFF”.
2. Check voltage between NATS antenna amp. connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Check the following.

20A fuse [No. 53, located in IPDM E/R]

Harness for open or short between fuse and NATS
antenna amp.
PIIA1263E
NATS antenna amp.
connectorTerminal
Voltage [V]
(Approx.)
(+) (–)
M21 1 Ground Battery voltage
PIIB6589E

BL-228
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
Diagnostic Procedure 4EIS00941
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP”
1. CHECK FUSE
Check 10A fuse [No.13, located in the fuse block (J/B)]
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2. CHECK COMBINATION METER (SECURITY)
1. Install 10A fuse.
2. Start engine and turn ignition switch OFF.
3. Check if the combination meter (security) lights up.
OK or NG
OK >> INSPECTION END.
NG >> GO TO 3.
3. CHECK COMBINATION METER (SECURITY) POWER SUPPLY CIRCUIT
1. Disconnect combination meter (security) connector.
2. Check voltage between combination meter (security) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and com-
bination meter (security).
4. CHECK BCM FUNCTION
1. Connect combination meter (security) connector.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground.
OK or NG
OK >> BCM is malfunctioning.

Replace BCM. Refer to BCS-25, "Removal and Instal-
lation of BCM" .

Perform initialization with CONSULT-II

For initialization, refer to “CONSULT-II Operation
Manual NATS”
NG >> Check the following.

Harness for open or short between combination meter (security) and BCM

Indicator lamp condition Combination meter (security) should light up.
Combination meter
(security) connec-
torTe r m i n a l
Voltage [V]
(Approx.)
(+) (-)
M24 27 Ground Battery voltage
PIIB6593E
BCM connectorTe r m i n a l
Voltage [V]
(Approx.)
(+) (-)
M18 23 Ground Battery voltage
PIIB6594E

BR-6
BRAKE PEDAL
Revision: June 20062007 Versa
BRAKE PEDALPFP:46501
Inspection and AdjustmentEFS006J6
PLAY AND CLEARANCE BETWEEN BRAKE PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED

Check brake pedal play.

Check brake pedal free height from dash lower panel (1).

Make an adjustment to the following dimension if value is out-
side the standard.
WFIA0511E
H1Brake pedal free height (from dash panel top
surface)A/T, CVT
models172.4 - 182.4 mm (6.79 - 7.18 in)
M/T model 162.3 - 172.3 mm (6.39 - 6.78 in)
H
2
Brake pedal depressed height (under a force
of 490 N (50 kg, 110 lb) with the engine run-
ning)A/T, CVT
models98 mm (3.86 in) or more
M/T model 90 mm (3.54 in) or more
CClearance between the threaded end of stop lamp switch
(2) and brake pedal lever (3).0.74 - 1.96 mm (0.0291 - 0.0772 in)
A Pedal play 3 - 11 mm (0.12 - 0.43 in)

BRAKE PEDAL
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Revision: June 20062007 Versa
ADJUSTMENT
1. Loosen stop lamp switch by rotating it counterclockwise by 45°.
2. Loosen lock nut on input rod, then rotate input rod to set pedal to
the specified height, and tighten lock nut.
CAUTION:
Make sure that the threaded end of input rod stays inside
clevis.
3. With the pedal pulled and held by hand, press stop lamp switch
until its threaded end contacts brake pedal lever.
4. With the threaded end of stop lamp switch contacting brake
pedal lever, rotate the switch clockwise by 45° to secure.
CAUTION:
Make sure that the clearance (C) is within the standard.
Refer to BR-6, "
Inspection and Adjustment" .
5. Check the pedal play.
CAUTION:
Make sure that stop lamps go off when brake pedal is
released.
6. Start engine to check brake pedal depressed height. Refer to
BR-6, "
Inspection and Adjustment" .
Removal and InstallationEFS006J7
COMPONENTS
Lock nut : Refer to BR-20, "COMPONENTS" .
SFIA3064E
1. Snap pin 2. Stop lamp switch 3. Clip
4. Brake pedal assembly 5. Clevis 6. Brake pedal pad
SFIA3065E