Nissan Juke Service and Repair Manual : Additional service when replacing ECM
Description
When replacing ECM, this procedure must be performed.
Work Procedure
1.PRECONDITIONING
• Connect a CONSULT-III • Connect a battery charger • Electric load switch is OFF • Wait for the engine to cool [engine coolant temperature < 60?°C (140?°F) and air temperature < 50?°C (122?°F)].
NOTE
:
While the ECM is being programmed the cooling fan motors are triggered
automatically.
>> GO TO 2.
2.SAVE ECM DATA
Turn ignition switch ON.
Perform ???SAVE DATA FOR CPU REPLC??? in WORK SUPPORT mode with CONSULT-III.
>> GO TO 3.
3.REPLACE ECM
Replace ECM.
>> GO TO 4.
4.WRITE ECM DATA
1. Wait at least 30 seconds to turn ON the ignition switch.
2. Perform ???PRGRM REINITIALIZE??? in WORK SUPPORT mode with CONSULT-III.
3. Perform ???WRT DATA AFTR REPLC CPU??? in WORK SUPPORT mode with CONSULT-III.
4. Perform initialization of NATS system and registration of all NATS ignition key IDs.
Refer to SEC-50, "ECM : Work Procedure" (With intelligent key system), SEC-190, "ECM : Work Procedure" (Without intelligent key system).
5. Turn ignition switch OFF, wait at least 30 seconds and then turn ON.
6. Select ???DATA MONITOR??? mode in ECM with CONSULT-III.
7. Check that the ???CODE PROGRAM??? indication.
Which is displayed on CONSULT-III? YES >> GO TO 6.
NO >> GO TO 5.
5.WRITE ECM DATA
1. Perform initialization of NATS system and registration of all NATS ignition key IDs.
Refer to SEC-50, "ECM : Work Procedure" (With intelligent key system), SEC-190, "ECM : Work Procedure" (Without intelligent key system).
2. Turn ignition switch OFF, wait at least 30 seconds and then turn ON.
3. Select ???DATA MONITOR??? mode in ECM with CONSULT-III.
4. Check that the ???CODE PROGRAM??? indication.
Which is displayed on CONSULT-III? YES >> GO TO 6.
NO >> Repeat above steps.
6.PERFORM VIN REGISTRATION
1. Start engine and warm it up to normal operating temperature.
NOTE
:
The start-up phase may last up to 30 seconds.
2. Turn ignition switch OFF, wait at least 30 seconds and then turn ON.
3. Perform ???VIN REGISTRATION??? in WORK SUPPORT mode with CONSULT-III.
4. Follow the instruction of CONSULT-III display.
NOTE
:
After replace ECM, stored DTC may appear on other control unit. Clear the
malfunction memory of these
control unit.
>> END
Basic inspection
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DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
The misfire detection logic consists of the following t ...
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Description
TCM selects the gear ratio using the engine load (throttle position), the
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CSC (concentric slave cylinder)
Exploded View
1. Transaxle assembly
2. CSC (Concentric Slave Cylinder)
: Always replace after every
disassembly.
: N·m (kg-m, ft-lb)
Removal and Installation
CAUTION:
• Never reuse CSC (Concentric Slave Cylinder). Because CSC slides back to the
original position
every time when removi ...