Nissan Altima L32. Manual - part 1490

TM-304

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P0703 STOP LAMP SWITCH

P0703 STOP LAMP SWITCH

Description

INFOID:0000000004201868

BCM detects ON/OFF state of the stop lamp switch and transmits the data to the TCM via CAN communica-

tion by converting the data to a signal.

DTC Logic

INFOID:0000000004201869

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

NOTE:

If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.

Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT-III

1. Turn ignition switch ON.

2. Start engine.

3. Start vehicle for at least 3 consecutive seconds.

4. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Is “P0703 BRAKE SW/CIRC” detected?

YES

>> Go to 

TM-304, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000004201870

1.

CHECK STOP LAMP SWITCH CIRCUIT

1. Check and adjust the installation position of stop lamp switch. Refer to 

BR-13, "Inspection and Adjust-

ment"

.

2. Turn ignition switch OFF.

3. Disconnect BCM connector M18.

4. Turn ignition switch ON.

5. Check voltage between BCM harness connector M18 terminal

26 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK HARNESS BETWEEN STOP LAMP SWITCH AND BCM (PART 1)

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P0703

BRAKE SW/CIRC

When the brake switch does not switch to 
ON or OFF.

• Harness or connectors
- (Stop lamp switch, and BCM circuit are 

open or shorted.)

- (CAN communication line is open or 

shorted.)

• Stop lamp switch

BCM harness connec-

tor

 Ground

Condition

Voltage 

(Approx.)

Connector

Terminal

M18

26

Depressed brake pedal

Battery 
voltage

Released brake pedal

0 V

AWDIA0088ZZ

P0703 STOP LAMP SWITCH

TM-305

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

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1. Turn ignition switch OFF.

2. Disconnect stop lamp switch connector.

3. Check continuity between stop lamp switch harness connector

E38 (A) terminal 2 and BCM harness connector M18 (B) termi-

nal 26.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK HARNESS BETWEEN STOP LAMP SWITCH AND BCM (PART 2)

Check continuity between BCM harness connector M18 terminal 26

and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK STOP LAMP SWITCH

Check stop lamp switch. Refer to 

TM-305, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> Check the following.

• Harness for short or open between battery and stop lamp switch

• 10A fuse (No. 7, located in fuse block)

NO

>> Repair or replace stop lamp switch.

5.

CHECK BCM

With CONSULT-III

1. Turn ignition switch OFF.

2. Connect BCM connector M18.

3. Turn ignition switch ON.

4. Select “BRAKE SW 1” in “DATA MONITOR” of “BCM” and verify the proper operation of ON/OFF. Refer to

BCS-47, "Reference Value"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

6.

DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

>> Replace TCM. Refer to 

TM-430, "Exploded View"

.

NO

>> Repair or replace damaged parts.

Component Inspection (Stop Lamp Switch)

INFOID:0000000004201871

1.

CHECK STOP LAMP SWITCH

Stop lamp switch harness con-

nector

BCM harness connector

Continuity

Connector

Terminal

Connector

Terminal

E38 (A)

2

M18 (B)

26

Existed

AWDIA0089ZZ

BCM harness connector

Ground

Continuity

Connector

Terminal

M18

26

Not existed

AWDIA0090ZZ

TM-306

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

P0703 STOP LAMP SWITCH

Check continuity between stop lamp switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp switch. 

BR-17, "Exploded View"

.

Stop lamp switch terminal

Condition

Continuity

1

 

2

Depressed brake pedal

Existed

Released brake pedal

Not existed

AWDIA0091ZZ

P0705 PARK/NEUTRAL POSITION SWITCH

TM-307

< COMPONENT DIAGNOSIS >

[CVT: RE0F10A]

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P0705 PARK/NEUTRAL POSITION SWITCH

Description

INFOID:0000000004201872

• The PNP switch assembly includes a transaxle range switch.

• The transaxle range switch detects the selector lever position and sends a signal to the TCM.

DTC Logic

INFOID:0000000004201873

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

NOTE:

If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.

Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT-III

1. Turn ignition switch ON.

2. Select “DATA MONITOR”.

3. Start engine.

4. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.
Is “P0705 PNP SW/CIRC” detected?

YES

>> Go to 

TM-307, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000004201874

1.

CHECK POWER SOURCE

1. Turn ignition switch OFF.

2. Disconnect PNP switch connector.

3. Turn ignition switch ON.

4. Check voltage between PNP switch harness connector F25 ter-

minal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check the following.

• Harness for short or open between ignition switch and PNP switch

• 10A fuse (No. 4, located in fuse block)

DTC

Item

(CONSULT-III screen term)

Malfunction is detected when...

Possible cause

P0705

PNP SW/CIRC

TCM does not receive the correct voltage 
signal (based on the gear position) from the 
switch.

• Harness or connectors

(PNP switches circuit is open or shorted.)

• PNP switch

VEHICLE SPEED

: More than 10 km/h (6 MPH)

ENG SPEED

: More than 450 rpm

ACC PEDAL OPEN

: More than 1.0/8

PNP switch harness connector

Ground

Voltage (Approx.)

Connector

Terminal

F25

3

Battery voltage

JPDIA1001ZZ