ignition NISSAN TEANA 2008 Service Manual

B2605 PNP SWITCH
SEC-67
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B2605 PNP SWITCH
DescriptionINFOID:0000000003814987
BCM confirms the shift position with the following 4 signals.
 Selector lever
 P/N position switch
 P position signal from IPDM E/R (CAN)
 P position signal from TCM (CAN)
DTC LogicINFOID:0000000003814988
DTC DETECTION LOGIC
NOTE:
 If DTC B2605 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2605 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions and wait for at least 1 second.
- Selector lever is in the P or N position
- Do not depress the brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-67, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814989
1.CHECK BCM INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Turn ignition switch ON.
4. Check voltage between BCM harness connector and ground.
Is the inspection normal?
YES >> Replace BCM. Refer to BCS-78, "Removal and Installation".
NO >> GO TO 2.
2.CHECK PNP SWITCH CIRCUIT
1. Turn ignition switch OFF.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2605 PNP SWITCHBCM detects the following status for 500 ms or
more when the ignition switch is in ON position
 N position input signal exists. Shift position signal
from IPDM E/R does not exist.
 N position input signal does not exist. Shift posi-
tion signal from IPDM E/R exists. Harness or connectors
[Park/neutral position (PNP) switch
circuit is open or shorted]
BCM
IPDM E/R
(+)
(–) ConditionVoltage (V)
(Approx.) BCM
Connector Terminal
M123 140 Ground Selector leverP or N position Battery voltage
Other than above 0

B2606 STEERING LOCK RELAY
SEC-69
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B2606 STEERING LOCK RELAY
DescriptionINFOID:0000000003814990
The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication.
IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM.
DTC LogicINFOID:0000000003814991
DTC DETECTION LOGIC
NOTE:
 If DTC B2606 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2606 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Turn ignition switch OFF.
3. Press driver side door switch and wait for at least 1 second.
4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-69, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814992
1.CHECK DTC WITH IPDM E/R
Check “Self diagnostic result” with CONSULT-III. Refer to SEC-191, "
DTCIndex".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace IPDM E/R. Refer to PCS-34, "
Removal and Installation".
2.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2606STEERING LOCK
RELAYBCM detects that there is a mismatch between the
following statuses.
 Steering lock unit ON signal transmitted by
IPDM E/R
 The steering lock unit status feedback Steering lock relay (Built into IPDM E/R)

SEC-70
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B2607 STEERING LOCK RELAY
B2607 STEERING LOCK RELAY
DescriptionINFOID:0000000003814993
BCM requests to IPDM E/R to supply power to steering lock unit. After receiving the power, the steering lock
unit transmits an ON signal to BCM.
DTC LogicINFOID:0000000003814994
DTC DETECTION LOGIC
NOTE:
 If DTC B2607 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2607 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Turn ignition switch OFF.
3. Press driver side door switch and wait for at least 1 second.
4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-70, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814995
1.CHECK DTC WITH IPDM E/R
Check “Self diagnostic result” with CONSULT-III. Refer to SEC-191, "
DTCIndex".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2607STEERING LOCK
RELAYBCM detects that there is a difference between the
following statuses.
 Steering lock unit ON signal transmitted by IPDM
E/R
 The steering lock unit status feedback  Harness or connectors (Steering
lock unit power supply circuit is
open or shorted)
 Steering lock relay (Built into IPDM
E/R)
(+)
(–) ConditionVoltage (V)
(Approx.) Steering lock unit
Connector Terminal
M12 1 GroundPress push-button ignition switch when
steering lock is in lock condition.Battery voltage

B2607 STEERING LOCK RELAY
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3.CHECK STEERING LOCK UNIT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between steering lock unit harness connector and IPDM E/R harness connector.
4. Check continuity between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Steering lock unit IPDM E/R
Continuity
Connector Terminal Connector Terminal
M12 1 E10 11 Existed
Steering lock unit
GroundContinuity
Connector Terminal
M12 1 Not existed

SEC-72
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B2608 STARTER RELAY
B2608 STARTER RELAY
DescriptionINFOID:0000000003814996
Located in IPDM E/R, the starter relay runs the starter motor. The starter relay is turned ON by the BCM when
the ignition switch is in the START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN
communication.
DTC LogicINFOID:0000000003814997
DTC DETECTION LOGIC
NOTE:
 If DTC B2608 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2608 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
 If DTC B2608 is displayed with DTC B210D for IPDM E/R, first perform the trouble diagnosis for DTC
B210D. Refer to SEC-104, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-72, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814998
1.CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK STARTER RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and BCM harness connector.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2608 STARTER RELAYBCM receives starter relay ON signal (CAN) from
IPDM E/R even if BCM turns the starter relay OFF. Harness or connectors
(Starter relay circuit is open or
shorted.)
 IPDM E/R
(+)
(–) ConditionVoltage (V)
(Approx.) BCM
Connector Terminal
M121 52 Ground Selector leverN or P position Battery voltage
Other than above 0

SEC-74
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B2609 STEERING STATUS
B2609 STEERING STATUS
DescriptionINFOID:0000000003814999
There are 2 switches in the steering lock unit (steering lock/unlock switch 1 and 2). BCM compares those 2
switches conditions to judge the present steering status.
DTC LogicINFOID:0000000003815000
DTC DETECTION LOGIC
NOTE:
 If DTC B2609 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2609 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE 1
1. Turn ignition switch ON under the following conditions and wait for at least 1 second.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-74, "Diagnosis Procedure".
NO >> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE 2
1. Turn ignition switch ON.
2. Turn ignition switch OFF.
3. Press driver side door switch and wait for at least 1 second.
4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-74, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003815001
1.INSPECTION START
Check the case in which DTC is detected.
 Case1: It is detected after ignition switch is changed from OFF to ON
 Case2: It is detected after ignition switch is changed from ON to OFF and door switch is pressed
In which case is DTC detected?
Case1 >> GO TO 2.
Case2 >> GO TO 6.
2.CHECK BCM OUTPUT SIGNAL
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2609 STEERING STATUSBCM detects the malfunction of steering lock unit
switches for 1 second. Harness or connectors
[Steering lock unit circuit (BCM
side) is open or shorted]
 Harness or connectors
[Steering lock unit circuit (IPDM E/
R side) is open or shorted]
 Steering lock unit
 IPDM E/R
BCM

B2609 STEERING STATUS
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1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector and IPDM E/R connector.
3. Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK STEERING LOCK UNIT CIRCUIT-1
1. Disconnect BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.
3. Check continuity between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-78, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK IPDM E/R OUTPUT SIGNAL
1. Connect IPDM E/R connector.
2. Disconnect BCM connector.
3. Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> Replace steering lock unit.
NO >> GO TO 5.
5.CHECK STEERING LOCK UNIT CIRCUIT-2
1. Disconnect IPDM E/R connector.
2. Check continuity between steering lock unit harness connector and IPDM E/R harness connector.
3. Check continuity between steering lock unit harness connector and ground.
(+)
(–)Voltage (V)
(Approx.) Steering lock unit
Connector Terminal
M12 8 Ground Battery voltage
Steering lock unit BCM
Continuity
Connector Terminal Connector Terminal
M12 8 M122 98 Existed
Steering lock unit
GroundContinuity
Connector Terminal
M12 8 Not existed
(+)
(–)Voltage (V)
(Approx.) Steering lock unit
Connector Terminal
M12 8 Ground Battery voltage
Steering lock unit IPDM E/R
Continuity
Connector Terminal Connector Terminal
M12 8 E10 33 Existed
Steering lock unit
GroundContinuity
Connector Terminal
M12 8 Not existed

SEC-76
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B2609 STEERING STATUS
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".
NO >> Repair or replace harness.
6.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector and IPDM E/R connector.
3. Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.CHECK STEERING LOCK UNIT CIRCUIT-3
1. Disconnect BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.
3. Check continuity between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-78, "Removal and Installation".
NO >> Repair or replace harness.
8.CHECK IPDM E/R OUTPUT SIGNAL
1. Connect IPDM E/R connector.
2. Disconnect BCM connector.
3. Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES >> Replace steering lock unit.
NO >> GO TO 9.
9.CHECK STEERING LOCK UNIT CIRCUIT-4
1. Disconnect IPDM E/R connector.
2. Check continuity between steering lock unit harness connector and IPDM E/R harness connector.
(+)
(–)Voltage (V)
(Approx.) Steering lock unit
Connector Terminal
M12 3 Ground Battery voltage
Steering lock unit BCM
Continuity
Connector Terminal Connector Terminal
M12 3 M122 97 Existed
Steering lock unit
GroundContinuity
Connector Terminal
M12 3 Not existed
(+)
(–)Voltage (V)
(Approx.) Steering lock unit
Connector Terminal
M12 3 Ground Battery voltage
Steering lock unit IPDM E/R
Continuity
Connector Terminal Connector Terminal
M12 3 E10 32 Existed

SEC-78
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B260B STEERING LOCK UNIT
B260B STEERING LOCK UNIT
DescriptionINFOID:0000000003815002
The steering lock unit performs the check by itself according to the steering status.
DTC LogicINFOID:0000000003815003
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch, when steering is locked.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-78, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003815004
1.INSPECTION START
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
3. Touch “ERASE”.
4.Perform DTC Confirmation Procedure.
See SEC-78, "
DTC Logic".
Is the DTC B260B displayed again?
YES >> Replace steering lock unit.
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B260B STEERING LOCK UNITBCM detects malfunctioning of steering lock unit be-
fore steering unlocking.Steering lock unit

B260C STEERING LOCK UNIT
SEC-79
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B260C STEERING LOCK UNIT
DescriptionINFOID:0000000003815005
The steering lock unit performs the check by itself according to the steering status.
DTC LogicINFOID:0000000003815006
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF.
3. Press driver side door switch.
4. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-79, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003815007
1.INSPECTION START
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
3. Touch “ERASE”.
4.Perform DTC Confirmation Procedure.
See SEC-79, "
DTC Logic".
Is the DTC B260C displayed again?
YES >> Replace steering lock unit.
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B260C STEERING LOCK UNITBCM detects malfunctioning of steering lock unit be-
fore steering locking.Steering lock unit