CHERY B113724031 WIRING HARNESS
Product Specifications
| CHERY | B113724031 |
The WIRING HARNESS is an automotive wiring harness assembly — a precisely engineered bundle of insulated copper conductors, shielded data cables, connector housings, and protective conduit that forms the complete electrical interconnection infrastructure for a specific vehicle system or zone, routing power, ground, and signal circuits between control modules, sensors, actuators, and junction boxes in a single pre-terminated, routing-specific assembly that installs as one unit. Unlike individual wires routed separately, a wiring harness integrates all conductors for a functional group — engine management, transmission control, instrument cluster, door, or body — into a single routed assembly whose branching topology, conductor gauges, connector pinouts, and protective sleeve selection are engineered simultaneously for the electromagnetic compatibility, current-carrying capacity, and service environment requirements of the specific vehicle architecture. Each conductor's cross-sectional area is selected for the maximum sustained current of its circuit plus a safety margin; shielded twisted pairs carry differential CAN bus, LIN bus, and analogue sensor signals where electromagnetic interference immunity is critical; high-current circuits for starter motors, alternators, and heating elements use heavy-gauge unshielded conductors with appropriately rated connectors; the complete harness is wrapped in corrugated conduit, braided sleeve, or foam tape at positions where abrasion, heat, or moisture resistance is required. The connector housings at each harness end use application-specific terminal types — male or female, sealed or unsealed, locking or friction-fit — selected for the mating connector on the component being connected, ensuring correct polarity and preventing accidental mis-connection of adjacent identical connectors through colour coding, terminal count, or housing shape differentiation.
This unit — CHERY B113724031 — is manufactured to OEM-equivalent specifications: conductor gauge, insulation material and temperature rating for each circuit, connector housing type and terminal material for each connection point, overall harness routing length and branch positions, shielding specification for data signal conductors, protective sleeve type and position, and circuit count and pinout assignment are matched to the original part. Supplied as a complete pre-terminated harness assembly ready for installation. Available wholesale from 2.13 USD, MOQ 1 pcs, production lead time 30-45 days.
Wiring harnesses fail through insulation chafing where the harness contacts a sharp body edge, a hot surface, or a moving component — the insulation wears through and the bare conductor contacts the body, creating a short circuit that blows a fuse or damages the connected module; through connector terminal corrosion from moisture ingress at unsealed connectors in underbonnet or underbody positions that increases contact resistance, producing voltage drop faults and intermittent component operation; through conductor fatigue fracture at repeated flex points — typically at door-to-pillar transition grommets where the harness flexes thousands of times during normal vehicle use — producing an intermittent open circuit that is extremely difficult to locate without harness replacement; and through rodent damage where insulation is stripped from conductors over a significant harness length, typically in vehicles stored for extended periods.
- Photograph the complete harness routing — every clip position, grommet location, and conduit path — before removing the old harness — the new harness must follow exactly the same routing to maintain the designed clearances from hot exhaust components, rotating accessories, and moving suspension and steering elements; a harness rerouted even slightly from the OEM path may contact a component it was designed to avoid and will chafe through within months; photograph from multiple angles before disconnecting any connector or removing any clip.
- Disconnect the vehicle battery negative terminal before disconnecting any harness connector — many harness connectors carry permanent battery voltage on ignition-off circuits; disconnecting a live connector can arc the terminal, damage the connector housing, or trigger a module fault code that requires scan tool clearing; with the battery disconnected, all connectors can be handled safely; allow 30 seconds after disconnection for capacitors in airbag and other pyrotechnic modules to discharge before working near those circuits.
- Transfer all harness routing clips and grommets from the old harness to the new one before installation — harness routing clips are specific to the harness cross-section at each attachment point; the new harness is supplied without the clips from the vehicle; count and remove all clips from the old harness, noting each clip's position for correct installation on the new harness; replace any clip that is cracked or has lost its retention force with a new clip of the correct type.
- Inspect all mating connectors on the vehicle side for terminal corrosion and connector housing damage before connecting the new harness — a new harness connected to a corroded vehicle-side terminal immediately begins its service life with a high-resistance contact that causes the fault the harness was replaced to resolve; use electrical contact cleaner and a fine brush to clean each vehicle-side terminal before connecting the new harness; replace any connector housing that is cracked, has deformed terminal cavities, or has missing secondary locks.
- Route the new harness through all grommets, clips, and conduit guides in the sequence established by the photographs before securing any clip — confirm the full harness length follows the photographed path and that all branch points are at their correct vehicle positions before pressing any clip into its body hole; a harness routed out of sequence may have insufficient slack at one branch point and excessive slack at another, leading to chafing at the tight point and unsecured conductor loops at the loose point.
- Install the new WIRING HARNESS (CHERY B113724031), reconnect the battery, clear all stored fault codes with an OBD-II scanner, and perform a complete functional test of every circuit served by the new harness — activate each connected component individually and confirm correct operation; check for new fault codes after a 10-minute operating cycle confirming no new codes have been set by incorrect connector engagement before returning the vehicle to service.
| Part | Reason for Combined Replacement |
|---|---|
| Control Module (ECU / TCU / BCM) Application-specific — module served by the harness | A wiring harness that failed from a short circuit may have exposed the connected control module's input and output driver circuits to voltages above the module's rated limits; MOSFET output drivers in ECUs and BCMs are particularly vulnerable to reverse voltage or overvoltage events from harness short circuits. If the short circuit blew the module's supply fuse, the module itself may have sustained internal damage that produces fault codes or incorrect outputs even after the new harness restores the correct circuit topology. Always perform a full module function test after harness replacement and replace the module if any output channel behaves incorrectly. |
| Harness Routing Clips and Grommets Application-specific clip set for the harness position | Harness routing clips that have been in place for the vehicle's service life accumulate UV embrittlement and corrosion that reduces their retention force; clips removed during harness replacement often fracture during extraction. A new harness installed with old, weakened clips will vibrate loose from its routing within a short period and chafe against adjacent components. Replace the complete clip and grommet set simultaneously with the harness to ensure the new harness is correctly secured from its first day of operation. |
| Fuse and Relay Set For all circuits served by the replaced harness | Fuses that have been subjected to the sustained overcurrent that caused the harness insulation damage will have had their fuse element heated to near its blow threshold even if they did not blow; a fuse element that has been heat-stressed without blowing has reduced remaining current-handling capacity and will blow prematurely at normal circuit loads. Replace all fuses associated with the damaged harness circuits simultaneously with the new harness to ensure the protection system is operating at its rated values. |