Nissan Juke Service and Repair Manual : P1643 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 GROUND CIRCUIT FOR OPEN AND SHORT
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 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.
Is the inspection result normal? YES >> Replace thermoplunger control unit.
NO >> Repair or replace.
P1642 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 ...
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 ...
Other materials:
Cylinder head
Exploded View
1. Camshaft sprocket
2. Cylinder head suspended bracket
3. Valve lifter
4. Valve rotator
5. Valve spring retainer
6. Valve spring
7. Exhaust valve
8. Intake valve
9. Valve collet
10. Cap
11. Rear engine slinger
12. Cylinder head gasket
13. Cylinder head
14. Cam ...
Charging related remote function (models with Navigation System)
To keep you effortlessly connected to your vehicle, the Nissan Leaf is equipped with a sophisticated Telematics Communication Unit (TCU). This built-in device maintains a constant connection between your car and the NISSAN Data Center, empowering you with a suite of advanced remote services designed ...
Both side headlamps (HI) are not turned on
Description
Both side headlamps (HI) are not turned ON when setting to the lighting
switch HI or PASS.
Diagnosis Procedure
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to BCS-92, "Symptom Table".
Is the inspection result normal?
YES >> GO TO 2.
NO ...
