Driver side cab internal wiring

14A005

JC46-14A005-ABB

BCU wiring (Main wiring)

14398

JC46-14398-MFB

Door internal wiring - Left

14A584

JC46-14A584-AAB

Cab internal wiring from driver side to passenger side

14B242

JC46-14B242-AAB

Driver side cab internal rear wiring

14014

JC46-14014-ABB

Door internal wiring - Right

14K138

JC46-14K138-AAB

TPMS, Radar, OAT and Horn Wiring

13B767

JC46-13B767-DB

Passenger side cab internal wiring

13B712

JC46-13B712-AEB

Driver side roof wiring

15B594

JC46-15B594-AB

Bumper wiring

13N052

JC46-13N052-AB

Roof wiring

15A404

JC46-15A404-ADB

Cab lift, wet type webasto wiring

13B711

JC46-13B711-DB

On-transmission wiring

14K039

JC46-14K039-ABB

Transmission-cab wiring

15A808

JC46-15A808-RAB

Exhaust-SCR wiring

9L430

JC46-9L430-AB

cab internal console wiring

14401

JC46-14401-ASB

Console wiring attachment-1

14A320

JC46-14A320-BB

Console wiring attachment-2

19C603

JC46-19C603-AB

Sensor on engine wiring

12A690

JC46-12A690-AFB

Injector wiring

9H589

JC46-9H589-C

Passenger side Engine ground wiring

14303

JC46-14303-AB

ADR Wiring - 24V from the battery

14405

JC46-14405-MBB

Driver side cab internal ground wiring

14F416

JC46-14F416-AB

ADR Wiring

14N013

JC46-14N013-UA

Battery wiring

14304

JC46-14304-AB

ADR Wiring - 24V from the battery

14300

JC46-14300-UB

Alternator-mega fuse-battery wiring

14A280

JC46-14A280-UB

Switch-ground wiring

10K701

JC46-10K701-TB

Switch-battery-ground wiring

14301

JC46-14301-UB

Relay - air heater ground wiring

6B018

JC46-6B018-A

Alternator-start/stop-starter wiring

12A522

JC46-12A522-BB

Air heater ground wiring

6B019

JC46-6B019-BB

SECTION: 2 FUSES AND RELAYS

2.1. General Description for Fuses:

Fuses and relays are the first points to be checked in an electrical failure. This section describes the fuses and relays in the vehicle and their functions.

Fuses are safety elements. They are included in the system in order to protect the power line and the component that they are connected to. They are included in the electrical system in order to protect the power line in case of excessive current consumption and/or short circuit. When the fuse is blown, it shall be replaced in order to remove the fault. However, it shall be examined carefully why the fuse has blown, the root cause of the fault and proper intervention shall be made to resolve this.

Fuse and Relay Box Diagram View:

2.2.1 Fuses:

2.2.2 Relays:

2.3. Mega Fuse:

This is the fuse with the highest amperage installed for the protection of electrical wiring of vehicles. It is rated at 150 Amperes.

SECTION: 3 ELECTRICAL WIRINGS

3.1.0 Basic Approaches on Fault Finding

We have mentioned in section 2 that the fuses and relays are the first points to be checked in an electrical failure. If there is no failure on fuses or relays, visually inspect the relevant line.

During visual inspection, check for cable sheath damage and whether the conductive part has come out due to friction in wires especially. Connectors on the line may be removed and re-installed again for visual inspection. Check for oxidation, loosening of the pins and check whether they are driven in. If you cannot observe any fault, check for open (disconnection) or short circuit in the line. If the line is also OK, perform measurements of terminal units such as control units.

The main guide in these inspections is the “wiring diagrams.’’ These shall be available in the computer or in the briefcase of each technician as a printed book.

Open circuit or short circuit faults may be “continuous” or may appear intermittently as per conditions. For example, fault may appear when the vehicle falls in a pit or when it enters a turn with a high speed, and it may be non-apparent when the vehicle is on a straight road. Intermittent faults are the most difficult ones to diagnose. In this respect, "passive" faults displayed in the diagnostics unit give us important information. If it is required to repeat the fault condition, one of the methods is making a test drive by connecting a measurement tool and trying to repeat the fault by changing many driving and environmental parameters. For example, if a CAN line disconnection is present between automatic transmission and Engine ECU, it is possible to view the disconnection moment graphically in a road test by connecting an oscilloscope to the transmission CAN line.

Another way of recurring the fault is ‘’static’’ operation. It is checked whether the fault recurs by jiggling the suspected line while the vehicle is parked.

3.1.1 Electric Wiring Repair Methods

Padded Add-on Wiring Repair

The electrical wiring may require repairs in case of mechanical damage. In this case, the instructions below shall be followed.

1) Remove the battery negative pole cap. The battery pole caps shall not be removed as the vehicle is operational. Place the removed battery pole cap following reconnecting all cables.

2) Before starting any modification, installation and superstructure operations, the related instructions must be read. The evidence whether the instructions are observed must be kept based on vehicle chassis number. The evidence may be photographs, project schematics etc. or other technical documentation.

3) Replace the whole cable if possible. Extensions in thick cables are very risky and should be avoided. Since it will have a negative effect on the starter current which changes drastically based on ambient temperature, extension of the cable length shall be avoided. Therefore, issues such as late operation or no operation may occur.

4) Padded add-on wiring repair procedure can only be done on cables with cross section larger than 1 mm.

5) Remove the cable sleeve on the wire approximately 25 mm. Remove the insulation on the wire approximately 7-8 mm.

6) Slide the contracted tube appropriate for the cable cross section near the cable with removed insulation around 2-3 mm proximity.

7) Select the extension clip appropriate for the cable cross section. Place the cables with removed insulation on the leads in the extension clip. Ensure that the cable insulation is not inside the terminal.

8-) Select the eyelet of the terminal clamps in align with the cable diameter and additional clip

9) Centre one lead of the extension that will be crimped with the appropriate eyelet of the terminal clamp. Ensure that the terminal lead is tightly fit in the groove on the clamps.

10) Keep the terminal in place so that it will not come out through the cable. Start crimping until the clamp is released (one or two clicks). Do not damage the terminal.

11) Hold the terminal clamp to view the cable diameter indicators. Tighten the clamp until the handles are released, then leave the clamp.

2) Cable insulation must not enter the terminal in any way.

3) The cables must be visible through the eyelets on the terminal.

APPLICATION OF CONTRACTING TUBE

1-) Slide the contracting tube on the cable extension. Ensure that the tube is centred on the cable extension.

2-) As per the operating instructions for the heat gun; heat the tube starting from the middle and going to the edges and rotate the tube accordingly, until the tube is completely contracted and ensured that it will not contract further. The resin inside the tube must flow out and must be visible from both leads of the tube.

3-) Ensure that the tube is not loose.

NOTE:

1-) The completed extension should be placed at a well-protected area to avoid mechanical damage. It shall not be placed where maximum vibration, distortion, bending and water accumulation occur.

2-) Cables shall not be connected through the leads with removed insulation; the cables shall be repaired as specified above.

3-) Silicon shall not be used for insulation. Contracting tubes shall be used.

4-) Components such as damaged cables and / or connecting parts, sockets, boxes etc. must never be used. If damage has occurred during installation, it must be replaced with new component.

9-) Slide the contracted tube near the cable with removed insulation around 2-3 mm proximity.

10-) The cables with insulation removed shall be inserted until seen through the eyelets of the terminal Ensure that the cable insulation is not inside the terminal.

3.2. Wiring Diagram Abbreviations:

3.3. Electric wiring on vehicle:

There are 21 main wirings on vehicle. You may find detailed information the wirings, connectors on the wirings on the following pages.

14A005  Driver side cab internal wiring 3D View:

14A005 Wiring :

C1A272 Connector

C1E701 / C2CB08 Connectors: