Nissan Juke Service and Repair Manual : P1650 thermoplunger control unit
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK THERMOPLUNGER CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect thermoplunger control unit harness connector.
3. Check the voltage between thermoplunger control unit harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
• 100A fusible link (letter B) • Harness for open and short between thermoplunger control unit and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK THERMOPLUNGER CONTROL UNIT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connector.
2. Check the continuity between thermoplunger control unit harness connector and ECM harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness for open or short between thermoplunger control unit and ECM.
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK THERMOPLUNGER CONTROL UNIT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect thermoplunger harness connector.
2. Check the continuity between thermoplunger control unit harness connector and thermoplunger harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK THERMOPLUNGER
Refer to EC-994, "Component Inspection".
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace malfunctioning Thermoplunger.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace thermoplunger control unit.
NO >> Repair or replace.
Component Inspection
1.CHECK THERMOPLUNGER
1. Turn ignition switch OFF.
2. Disconnect thermoplunger harness connector.
3. Check resistance between thermoplunger terminals as follows.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace malfunctioning thermoplunger.
P1643 thermoplunger control unit
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CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any of
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2. Rebound stopper
3. Washer
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REMOVAL
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2. Remove center pipe. Refer to EX-6, "Removal and Installation".
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DTC/circuit diagnosis
Main line between IPDM-E and DLC circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose
connection (connector s ...