Nissan Maxima. Instruction — part 1145
TM-44
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000010113460
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H and CAN-L) allowing a high rate of information transmission with
less wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000010113461
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
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
1. Turn ignition switch ON.
2. Start engine and wait for at least 6 seconds.
3. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT”.
Is “U1010” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113462
1.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
U1010
TCM Communication Mal-
function
When detecting error during the initial diag-
nosis of CAN controller to TCM.
TCM
P0615 STARTER RELAY
TM-45
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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P0615 STARTER RELAY
Description
INFOID:0000000010113463
• TCM controls starter relay in IPDM E/R.
• TCM switches starter relay ON at “P” or “N” position and allows to crank engine.
• Then it prohibits cranking other than at “P” or “N” position.
DTC Logic
INFOID:0000000010113464
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0615” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113465
Regarding Wiring Diagram information, refer to
.
1.
CHECK STARTER RELAY SIGNAL
1. Turn ignition switch ON.
2. Disconnect IPDM E/R connector.
3. Check voltage between IPDM E/R vehicle side harness connec-
tor terminal and ground.
Is the inspection result normal?
YES
>> Check starter relay and starter control relay. Refer to
PCS-11, "Diagnosis Description"
.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 1)
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0615
Starter Relay Circuit
If this signal is ON other than in “P” or “N” po-
sition, this is judged to be a malfunction.
(And if it is OFF in “P” or “N” position, this too
is judged to be a malfunction.)
• Harness or connectors
(Starter relay and TCM circuit is open or
shorted.)
• Starter relay circuit
IPDM E/R vehicle side
harness connector
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
F10
72
Selector lever in “P” and
“N” positions
Battery voltage
Selector lever in other
positions
0V
AWDIA0085ZZ
TM-46
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0615 STARTER RELAY
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM vehicle side harness connector
terminal and IPDM E/R vehicle side harness connector terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 2)
Check continuity between TCM vehicle side harness connector ter-
minal and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
TCM vehicle side harness con-
nector
IPDM E/R vehicle side harness
connector
Continuity
Connector
Terminal
Connector
Terminal
F15 (A)
20
F10 (B)
72
Existed
AWDIA0086ZZ
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F15
20
Not existed
AWDIA0087ZZ
P0703 BRAKE SWITCH B
TM-47
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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P0703 BRAKE SWITCH B
Description
INFOID:0000000010113466
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:0000000010113467
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1. Turn ignition switch ON.
2. Start engine.
3. Drive vehicle for at least 3 consecutive seconds.
4. Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0703” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113468
Regarding Wiring Diagram information, refer to
.
1.
CHECK STOP LAMP SWITCH CIRCUIT
1. Check and adjust the installation position of stop lamp switch. Refer to
BR-14, "Inspection and Adjust-
.
2. Disconnect BCM connector.
3. Check voltage between BCM vehicle side harness connector
terminal 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
Trouble diagnosis name
DTC is detected if...
Possible cause
P0703
Brake Switch B Circuit
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 vehicle side harness
connector
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M18
26
Depressed
brake pedal
Battery voltage
Released
brake pedal
0V
AWDIA0088ZZ
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