
Starter 312005R7A01,312005R7A02 SM74015 FOR Honda Fit 1.5L 2015-2016
Applicable models:Honda Fit 1.5L 2015-2016
Reference part number: 312005R7A01,312005R7A02 SM74015 156.801.025.360, HAD225501 59212857, 156.801.025.870 23217656, EAA-221512, 5805SP UD02559A, KTR313602050, 9051525F, TA000B06101, STU4015AB、STU4015BA、 STU4015XH ,STU4015ZD 300N11729Z, 31200-5R7-A01、SM-74015、16283 ALT5020SA, ACA945, 89212664 L 63 540, L 69 190, ALT5020ERsa, 441798, 9051525F, TA000B06101, HJA1427IR, 156.801.025.130
| Power horsepower : | 12V 1.6KW |
| Number of feet : | 9T |
| Size : | 24*12*16single unit inner box |
| Weight : | net weight:2.55KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | starter |
| Specification : | 12V 1.6KW |
| Number of feet : | 9T |
| Brand : | nuojin |
| Number : | 31200-5R7-A01 |
| Quality : | Remanufacture |
| Delivery time : | 10 day |





Installation Procedure for Honda Fit 12V 1.6KW Starter
Pre-Installation Preparation
Tools and Protection
Prepare tools including 10-14mm socket wrenches, a torque wrench, a Phillips screwdriver, and electrical tape.
Wear non-slip protective gloves and goggles to prevent oil contamination and metal debris injuries. Additionally, have thread-locking adhesive ready to assist with fixation.
Component and Vehicle Inspection
Confirm the new starter is a 12V 1.6KW model compatible with the Honda Fit. Inspect for no cracks on the housing, no ablation on the solenoid switch contacts, and no excessive brush wear.
Record the car radio or navigation anti-theft code and audio presets in advance to avoid data loss after subsequent power restoration.
Safety Preprocessing
Disconnect the negative battery terminal cable (some models recommend disconnecting the positive terminal simultaneously and insulating it) to completely cut off the circuit.
Clean oil, dust, and debris from the starter mounting position in the engine compartment (near the junction of the engine and transmission).
Remove obstructive components such as the engine compartment splash guard and intake manifold bracket to facilitate smooth operation of the starter.
Core Installation Steps
Precise Alignment and Placement
Move the new starter to the mounting position, ensuring the starter's drive gear faces the flywheel. Align it with the two mounting bolt holes on the engine block and gently fit it to the mounting surface. Do not forcefully press or pry, as this may damage the threaded holes or starter housing.
Pre-Tightening and Securing Mounting Bolts
Insert the mounting bolts and hand-tighten them to a preliminary fix. Then torque them to approximately 35N·m with a torque wrench (refer to universal standards for similar models).
Tighten the bolts symmetrically in stages to prevent the starter from tilting. If bolts are rusted, replace them with high-strength bolts of the same specification and apply a small amount of thread-locking adhesive to enhance stability.
Standardized Wiring Connection
First, connect the starter's power cable (thick wire) to the B terminal on the starter, secure it with a nut, and control the torque to 10-12N·m to prevent terminal loosening and overheating.
Next, connect the control wire (thin wire, usually black-white) to the S terminal of the solenoid switch, ensuring the connector is fully engaged and secure.
If wire clamps are available, fix the wiring harness simultaneously to avoid tangling.
Reinstall Obstructive Components
Reattach the intake manifold bracket, splash guard, and other previously removed components to their original positions. Ensure secure installation without interfering with the starter or surrounding components' movement space.
Finalization and Testing
Power Restoration
After rechecking for correct wiring (no reverse connections or loose contacts), first reconnect the positive battery terminal cable, then the negative terminal.
Gently pull the wiring harness to confirm no loose connections. Organize the harness and clip it into the corresponding wire fasteners to avoid contact with rotating components.
Functional Testing
Turn off all vehicle electrical devices, turn the ignition switch, and observe: the starter should quickly drive the flywheel to rotate without idling, "clicking" meshing noise, or jamming.
If abnormalities occur, immediately disconnect the power to inspect the meshing between the drive gear and flywheel, or check for wiring issues.
Subsequent Calibration
After successful testing, enter the radio or navigation anti-theft code, restore audio presets, and calibrate the vehicle clock.
If the vehicle's power window system malfunctions, synchronously complete the reset operation of the window control unit.
Secondary Inspection
After allowing the vehicle to stand for a short period, recheck that the starter mounting bolts and wiring terminals are secure.
Clean up tools and confirm no debris is left in the engine compartment. Finally, recheck that the wiring harness around the starter is not tangled and maintains a safe distance from high-temperature components such as the exhaust pipe. The entire installation process is now complete.
Key Precautions for Installation of Honda Fit 12V 1.6KW Starter
I. Safety Operation Red Lines (Strictly Prohibited)
1. Power Disconnection Process Cannot Be Simplified
Before installation, disconnect the negative battery terminal unconditionally. If the vehicle is equipped with capacitive energy storage components, wait 5-8 minutes to discharge residual electricity.
Strictly prohibit hot-swapping wires or prying the starter while powered on. When restoring power, connect the positive terminal first, then the negative terminal. Reverse operation will burn the starter coil and on-board electronic components.
2. Protective Equipment Must Be Worn Throughout
Wear non-slip, oil-resistant gloves at all times to prevent tool slippage due to oily hands and scratches from sharp edges on the starter housing.
Wear goggles to shield against metal debris and oil splatter during installation, especially when cleaning the mounting position or tightening bolts.
3. Keep Away from High-Risk Areas
During installation, strictly avoid placing hands or tools near rotating components such as the flywheel and pulley.
Before testing, thoroughly remove tools, rags, and other debris from the engine compartment to prevent mechanical damage or safety accidents caused by entanglement during startup.
II. Component Compatibility and Protection Key Points
1. Violent Alignment and Installation Are Prohibited
If there is misalignment between the starter and the engine's bolt holes, fine-tune the engine position by manually rotating the crankshaft pulley.
Never strike the housing with a hammer or pry the mounting bracket with a screwdriver, as this may cause housing deformation, thread stripping, or damage to internal drive gears.
2. Pre-Installation Component Condition Inspection
Before installation, confirm:
Brush wear of the new starter does not exceed 3mm;
Solenoid switch contacts show no ablation;
Drive gear has no broken teeth or defects.
Simultaneously verify that the mounting hole spacing and gear module are fully compatible with the original vehicle's flywheel to avoid faults such as weak startup or idling caused by component defects.
3. Bolt Specifications Cannot Be Substituted
If mounting bolts are rusted or stripped, replace them with high-strength bolts of the same specification (Grade 8.8 recommended). Never use ordinary bolts as substitutes.
Ordinary bolts lack sufficient strength and are prone to breakage due to vibration during starter operation, leading to serious issues such as starter detachment.
III. Installation Process Detail Specifications
1. Precise Torque Control
Tighten the mounting bolts to 35N·m, following a symmetrical, step-by-step sequence (pre-tighten all bolts first, then gradually apply full torque).
Under-tightening may cause loosening due to vibration during operation;
Over-tightening may result in housing deformation.
Control the torque for power terminal fastening between 10-12N·m:
Over-tightening may damage the terminal;
Under-tightening may cause poor contact and terminal overheating.
References:
Source Explanation of the Installation Precautions for Honda Fit 12V 1.6KW Starter
1. Maintenance Specifications for Honda-Related Models
Disconnecting the negative battery terminal before installation;
Tightening bolts to standard torque;
Distinguishing positive and negative poles when connecting wires.
These requirements serve as important references for precautions such as safe power disconnection and tightening bolts to 35N·m in the summary, which are adapted to the mechanical structure characteristics of Honda Fit and its platform-sharing models.
2. Practical Experience from Automotive Vertical Platforms
Prohibiting violent striking or prying during starter removal and installation;
Limiting single startup duration to no more than 5 seconds;
Requiring intervals between consecutive startup attempts.
They also mention practical details like removing some obstructive components in the engine compartment during disassembly/installation and replacing rusted bolts with high-strength alternatives. These contents are integrated into precautions related to component protection and fault prevention, aligning with the actual maintenance scenarios of the Honda Fit.

