NISSAN ALMERA N16 2003 Electronic Repair Manual

CAN COMMUNICATION LINE
AT-395
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CAN COMMUNICATION LINEPFP:31940
DescriptionECS007SN
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 error detection ability. Many elec-
tronic 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 connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
*: This terminal is connected to the ECM.
On Board Diagnosis LogicECS007SO
**: A/T COMM LINE means CAN communication line.
Self-Diagnosis Code Confirmation ProcedureECS007SP
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Wait at least 6 seconds or start engine and wait for at least 6
seconds.
4. If DTC is detected, go to AT- 3 9 7 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch “ON”.
2. Wait at least 6 seconds or start engine and wait at least 6 sec-
onds.
3. Perform self-diagnosis.
Refer to AT-250, "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT- 3 9 7 , "
Diagnostic Procedure" .
Termi-
nal No.Wire color Item ConditionJudgement
standard
(Approx.)
5 L CAN (H) — — —
6 R CAN (L) — — —
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T COMM LINE**
The ECM-AT communication line is open
or shorted.
●Harness or connectors
(The solenoid circuit is open or shorted.)
●Line pressure solenoid valve
: 11th judgement flicker
SAT014K
SCIA0705E

AT-396
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CAN COMMUNICATION LINE
Wiring Diagram — AT — CAN
ECS007SQ
YAT 3 6 6

CAN COMMUNICATION LINE
AT-397
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Diagnostic ProcedureECS007SR
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. The “CON COMM CIRCUIT” is detected.
Ye s o r N o ?
Yes >> Print out CONSULT-II screen, GO TO 2.
NG >> INSPECTION END
2.CHECK CAN COMMUNICATION SIGNALS
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “CAN COMM SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
CAN Communication Signals
>> Print out CONSULT-II screen, go to EL-509, "CAN COMMUNICATION".
PCIA0061E
Normal conditions Abnormal conditions (examples)
CAN COMM: OK CAN COMM: OK
CAN CIRC 1: OK CAN CIRC 1: UNKWN
CAN CIRC 2: OK CAN CIRC 2: UNKWN
CAN CIRC 3: UNKWN CAN CIRC 3: UNKWN
CAN CIRC 4: OK CAN CIRC 4: UNKWN
CAN CIRC 5: UNKWN CAN CIRC 5: UNKWN

AT-398
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A/T SHIFT LOCK SYSTEM
A/T SHIFT LOCK SYSTEM
PFP:34950
DescriptionECS007SS
●The mechanical key interlock mechanism also operates as a shift lock:
With the key switch turned to ON, the selector lever cannot be shifted from “P” (parking) to any other posi-
tion unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” to any other position.
The key cannot be removed unless the selector lever is placed in “P”.
●The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts LocationECS007ST
SCIA0781E

A/T SHIFT LOCK SYSTEM
AT-399
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Wiring Diagram — SHIFT —ECS007SU
YAT 3 6 7

AT-400
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A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
ECS007SV
SYMPTOM 1:
●Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
●Selector lever can be moved from “P” position with key in ON position and brake pedal released.
●Selector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to “P” position. It can be removed when
selector lever is set to any position except “P”.
1. CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2
NG >> Repair key interlock cable. Refer to AT- 4 0 4 , "
KEY INTERLOCK CABLE" .
2. CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK >> GO TO 3
NG >> Check selector lever. Refer to AT- 4 0 8 , "
Park/Neutral Position (PNP) Switch Adjustment" .
3. CHECK POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between stop lamp switch harness terminal 1 and ground.
OK or NG
OK >> GO TO 4
NG >> Check the following items:
1. Harness for short or open between battery and stop
lamp switch harness terminal 1
2. Fuse
3. Ignition switch (Refer to EL-11, "POWER SUPPLY
ROUTING".) Voltage: Battery voltage
MCIB0003E

A/T SHIFT LOCK SYSTEM
AT-401
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4.CHECK INPUT SIGNAL (A/T DEVICE)
Turn ignition switch to “ON” position.
(Do not start engine.)
●Check voltage between A/T device harness terminal 2 and ground.
OK or NG
OK >> GO TO 5
NG >> Check the following items:
1. Harness for short and open between battery and stop
lamp switch harness connector 1.
2. Harness for short or open between stop lamp switch harness connector 2 and A/T device har-
ness connector 2.
3. Fuse
4. Stop lamp switch (Refer to AT-403, "
A/T DEVICE CHECK" .)
5.CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness terminal 3 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Voltage:
Brake pedal depressed:
Battery voltage
Brake pedal released:
0V
MCIB0004E
Continuity should exist.
SAT009K

AT-402
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A/T SHIFT LOCK SYSTEM
6. CHECK RELAY CIRCUIT
1. Turn ignition switch to ON.
Check voltage between terminal 2 - 3 and 4 - 3.
OK or NG
OK >> GO TO 7
NG >> Replace A/T device.
7. CHECK PARK POSITION SWITCH
Refer to AT-403, "
A/T DEVICE CHECK" .
OK or NG
OK >> GO TO 8
NG >> Replace A/T device.
8. CHECK SHIFT LOCK SOLENOID
Refer to AT-403, "
A/T DEVICE CHECK" .
OK or NG
OK >> GO TO 9
NG >> Replace A/T device.
9. SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from “OFF” to “ON” position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
MCIB0005E

A/T SHIFT LOCK SYSTEM
AT-403
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A/T DEVICE CHECK
1. Shift Lock Solenoid
●Check operation sound.
When ignition switch is turned to “ON” position and selector lever is set in “P” position.
2. Park Position Switch
●Check resistance between A/T device harness terminal 6 and 7.
STOP LAMP SWITCH
●Check continuity between terminals 1 and 2.
Check stop lamp switch after adjusting brake pedal — refer to
BR-12.
Brake pedal Operation sound
Depressed Yes
Released No
Condition Resistance
When selector lever is set in “P” position and selector
lever button is released111Ω
When selector lever is not set in “P” position and selector
lever button is released0Ω
SAT011K
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
SAT861JA

AT-404
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KEY INTERLOCK CABLE
KEY INTERLOCK CABLE
PFP:34908
ComponentsECS007SW
CAUTION:
●Install key interlock cable in such a way that it will not be damaged by sharp bends, twists or inter-
ference with adjacent parts.
●After installing key interlock cable to control device, make sure that casing cap and bracket are
firmly secured in their positions.
RemovalECS007SX
1. Unlock slider by squeezing lock tabs on slider from adjuster
holder and remove interlock rod from cable.
SAT996J
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