FAW J6P Chassis Electrical Equipment: Deconstructing 40 Critical Parts for Flawless Vehicle Operation

This is a complete technical guide to the FAW J6P Chassis Electrical Equipment for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This deconstruction analyzes the 40 serviceable components that form the vehicle’s core electrical power and sensor network, located outside the cab.

The FAW J6P Chassis Electrical Equipment comprises all the wiring, power sources, sensors, and lighting that are mounted directly to the vehicle’s frame. Unlike the in-cab electronics, this system is designed to withstand extreme environmental abuse, including water, mud, high-pressure washing, and constant vibration. This system is the backbone of the entire vehicle, providing the power to start the engine, run all accessories, and illuminate the vehicle.

This deconstruction will analyze the four key logic groups of the FAW J6P Chassis Electrical Equipment: the power generation and storage (alternator, batteries), the main wiring harnesses that carry power, the lighting and signaling systems (headlights, taillights, horns), and the critical sensor network (speed, fuel, diff locks). A properly maintained FAW J6P Chassis Electrical Equipment system is essential for reliability, safety, and operational uptime.

Core 1: The “Power Generation & Storage” Logic

This is the heart of the FAW J6P Chassis Electrical Equipment. This group is responsible for creating, storing, and distributing the 24-volt power the entire truck runs on.

1. Component: ‘Alternator assy’ (3701010-14B) – Qty 1
This (Comp 1) is the vehicle’s power generator. Driven by the engine’s accessory belt, it produces 24V electricity to run all components and, most importantly, to recharge the batteries. This is the primary power source for the FAW J6P Chassis Electrical Equipment when the engine is running.

2. Component: Battery System (3703010-242, 3703161-242, 3703162-240) – Qty 2 sets
This (Comp 2, 3, 4) is the energy storage. It includes two ‘Batteries (150Ah)’ (Comp 2), the ‘Battery lower tray’ (Comp 3), and the ‘Battery upper clamp’ (Comp 4). This 24V Logic is achieved by connecting two 12V batteries in series. This battery bank provides the immense amperage needed to turn the ‘Starter motor assy’ (Comp 6, 3708010-29D) and powers the entire FAW J6P Chassis Electrical Equipment when the engine is off.

3. Component: ‘Power distribution box & bracket assy’ (3722080-382) – Qty 1
This (Comp 16) is a critical junction. It is a weather-proof box, mounted on the FAW J6P Frame, that takes the main power feed from the battery and splits it into multiple, fused circuits to power different parts of the FAW J6P Chassis Electrical Equipment, such as the lighting and sensors.

4. Component: ‘Power switch assy’ (3736010-61B) – Qty 1
This (Comp 30) is the main “master disconnect” switch. This heavy-duty switch is used to completely disconnect the batteries from the entire FAW J6P Chassis Electrical Equipment, which is critical for safety during maintenance or long-term storage.

Core 2: The “Nervous System” Logic (Harnesses & Cables)

This group is the “nervous system” of the FAW J6P Chassis Electrical Equipment. These are the thick, protected wiring harnesses that carry power and signals along the length of the truck frame.

1. Component: ‘Chassis wiring harness assy’ (3724045A14BJ) – Qty 1
This (Comp 19) is the largest and most complex harness in the FAW J6P Chassis Electrical Equipment. It is a massive loom of wires that runs from the cab’s firewall to the rear, carrying signals for brake lights, diff locks, sensors, and power for the fuel pump.

2. Component: ‘Harness – engine to frame’ (3724070-55A) – Qty 1
This (Comp 20) is the “bridge” harness. It connects the engine-mounted sensors (like oil pressure, temperature) and the alternator to the main chassis harness (Comp 19). It is a key part of the FAW J6P Chassis Electrical Equipment data network.

3. Component: Battery & Power Cables (3724160-10A, 3724165A61B, 3724180-50A)
This (Comp 22, 23, 24) is the set of heavy-gauge cables for high-amperage power. This includes ‘Harness – starter to power switch’ (Comp 22) and ‘Harness – power switch to battery’ (Comp 23). These are the thickest wires in the entire FAW J6P Chassis Electrical Equipment system.

Core 3: The “Lighting & Signaling” Logic (Visibility & Safety)

This group includes all the externally mounted lights and horns that are part of the FAW J6P Chassis Electrical Equipment. These are critical for safety and road-legal operation.

1. Component: ‘Left/Right front combination lamp assy’ (3711015A50A, 3711020A50A) – Qty 1 each
This (Comp 7, 8) is the main headlight assembly. This single unit contains the main headlight, the turn signal, and the parking light. It is a core component of the FAW J6P Chassis Electrical Equipment.

2. Component: ‘Left/Right combined rear lamp assy’ (3716015-362, 3716020-362) – Qty 1 each
This (Comp 9, 10) is the main taillight assembly. This unit contains the brake light, turn signal, taillight, and reversing light. These are mounted on ‘Left/Right rear lamp brackets’ (Comp 11, 12).

3. Component: ‘Left/Right front fog lamp assy’ (3732015-53A, 3732020-53A) – Qty 1 each
This (Comp 28, 29) is the set of fog lights, mounted low on the chassis or bumper to provide visibility in poor weather. This is an important safety feature of the FAW J6P Chassis Electrical Equipment.

4. Component: ‘Air horn assy’ (3721010-116, 3721115-50A) & ‘Solenoid valve’ (3754010-73A)
This (Comp 13, 14, 33) is the audible warning system. The ‘Solenoid valve’ (Comp 33) is an electric switch that, when activated by the horn button, releases compressed air from the brake system to the ‘Air horn’ (Comp 14) and ‘High-tone air horn’ (Comp 13).

Core 4: The “Sensor & Control” Logic (The Data Network)

This final group of the FAW J6P Chassis Electrical Equipment includes the various sensors that provide critical operational data to the driver (via the instrument cluster) and the vehicle’s ECU.

1. Component: ‘Electronic tachograph sensor assy’ (3802020-76A) – Qty 1
This (Comp 37) is the vehicle speed sensor (VSS). The Speed Sensing Logic is that this sensor mounts to the gearbox and generates an electronic pulse proportional to the driveshaft speed. This signal is the source for the speedometer in the cab, a key function of the FAW J6P Chassis Electrical Equipment.

2. Component: ‘Fuel gauge sensor assy’ (3806040-60A) – Qty 1
This (Comp 38) is the fuel level sender, located inside the fuel tank. It provides the fuel level reading to the instrument cluster.

3. Component: Brake & Axle Sensors (3757010-61B, 3757050-435, 3834050-B27, 3834010-B27)
This is a critical group of safety sensors in the FAW J6P Chassis Electrical Equipment. It includes the ‘Air pressure sensor’ (Comp 35) to monitor the brake system, the ‘Hand brake warning switch’ (Comp 36), and the ‘Inter-axle’ (Comp 39) and ‘Wheel diff lock’ (Comp 40) switches, which confirm to the driver that the differential locks are engaged.

FAW J6P Chassis Electrical Equipment: Complete 40-Part Breakdown

The following table provides the complete, detailed breakdown of all 40 component types in the FAW J6P Chassis Electrical Equipment assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This list is essential for any service of the FAW J6P Chassis Electrical Equipment.

Core Specifications

The specifications for the FAW J6P Chassis Electrical Equipment are defined by its heavy-duty 24V architecture, robust wiring harnesses, and extensive sensor network designed for the CA3250P66K2L1T1E dump truck. The FAW J6P Chassis Electrical Equipment is built for maximum reliability.