Nissan Quest E52. Manual - part 1211

TM-74

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0615 STARTER RELAY

P0615 STARTER RELAY

DTC Logic

INFOID:0000000009650128

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn ignition switch ON.

2.

Shift the selector lever to “P” or “N” position and wait at least 10 seconds.

3.

Check DTC.

Is “P0615” detected?

YES

>> Go to 

TM-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000009650129

1.

CHECK STARTER RELAY SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Turn ignition switch ON.

4.

Check the voltage between IPDM E/R harness connector terminal and ground.

Is the inspection result normal?

YES

>> Check IPDM E/R. Refer to 

PCS-16, "Reference Value"

.

NO

>> GO TO 2.

2.

CHECK HARNESS BETWEEN TCM AND IPDM E/R

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check the continuity between TCM harness connector terminal and IPDM E/R harness connector termi-
nal.

DTC

Trouble diagnosis name

DTC detected condition

Possible cause

P0615

Starter Relay Circuit

The starter relay monitor value is OFF when 
the starter relay command value is ON.

• Harness or connectors

(Starter relay circuit is open or shorted.)

• Starter relay
• IPDM E/R

The starter relay monitor value is ON when the 
starter relay command value is OFF.

+

-

Condition

Voltage (Approx.)

IPDM E/R

Connector

Terminal

F12

72

Ground

Selector lever in “P” and “N” positions

10 – 16 V

Selector lever in other positions

0 V

TCM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F23

20

F12

72

Existed

P0615 STARTER RELAY

TM-75

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

4.

Check the continuity between TCM harness connector terminal and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Repair or replace damaged parts.

TCM

—

Continuity

Connector

Terminal

F23

20

Ground

Not existed

TM-76

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0703 BRAKE SWITCH B

P0703 BRAKE SWITCH B

DTC Logic

INFOID:0000000009650130

DTC DETECTION LOGIC

NOTE:
DC stands for “DRIVING CYCLE” and indicates a series of driving cycle of “Ignition switch OFF 

→

 ON 

→

 driv-

ing 

→

 OFF”.

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Start the engine.

2.

Drive the vehicle.

3.

Maintain the following conditions for 10 seconds or more.

4.

Depress the brake pedal.

5.

Stop the vehicle.

6.

Turn ignition switch OFF.

7.

Repeat step 1 to 6.

8.

Turn ignition switch ON.

9.

Check DTC.

Is “P0703” detected?

YES

>> Go to 

TM-76, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009650131

1.

CHECK STOP LAMP RELAY SIGNAL

1.

Turn ignition switch OFF.

2.

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

BR-7, "Inspection and Adjustment"

.

3.

Disconnect the BCM connector.

4.

Check the voltage between BCM connector terminal and ground.

DTC

Trouble diagnosis name

DTC detected condition

Possible cause

P0703

Brake Switch “B” Circuit

TCM detects malfunction in two continuous 
DCs in CAN communication with BCM

• Harness or connectors
- (Stop lamp switch circuit is open or short-

ed.)

- (CAN communication line is open or 

shorted.)

• Stop lamp switch
• Stop lamp relay
• BCM

When below diagnosis condition is met, if 
ON/OFF of stop lamp switch signal does not 
switch in two continuous DCs, the DTC is 
detected at succeeding ignition switch ON
• Diagnosis Condition
- Vehicle speed is kept 30km/h (19 MPH) or 

more for 10 seconds

Vehicle speed

: 30 km/h (19 MPH) or more

P0703 BRAKE SWITCH B

TM-77

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Is the inspection result normal?

YES

>> Check the BCM. Refer to 

BCS-40, "Reference Value"

.

NO

>> GO TO 2.

2.

CHECK HARNESS BETWEEN STOP LAMP RELAY AND BCM

1.

Disconnect the stop lamp relay.

2.

Check the continuity between stop lamp relay harness connector terminal and BCM harness connector
terminal.

3.

Check the continuity between BCM harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>>

Check the following.

• Harness for short or open between BCM and fuse block (J/B)
• Harness for short or open between stop lamp relay and fuse block (J/B)
• Fuse block (J/B)

3.

CHECK STOP LAMP SWITCH SIGNAL

Check the voltage between stop lamp relay harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 4.

4.

CHECK STOP LAMP SWITCH

Check the stop lamp switch. Refer to 

TM-78, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace the stop lamp switch. Refer to 

BR-18, "Exploded View"

.

5.

CHECK HARNESS BETWEEN STOP LAMP SWITCH AND STOP LAMP RELAY

1.

Disconnect the stop lamp switch.

2.

Check the continuity between stop lamp switch harness connector terminal and stop lamp relay harness
connector terminal.

+

-

Condition

Voltage (Approx.)

BCM

Connector

Terminal

M121

9

 Ground

Depressed brake pedal

9 – 16 V

Released brake pedal

0 V

Stop lamp relay

BCM

Continuity

Connector

Terminal

Connector

Terminal

E15

3

M121

9

Existed

BCM

 

—

Continuity

Connector

Terminal

M121

9

 Ground

Not existed

+

-

Condition

Voltage (Approx.)

Stop lamp relay

Connector

Terminal

E15

2

 Ground

Depressed brake pedal

9 – 16 V

Released brake pedal

0 V