Dedicated Subsystem WorkbenchPlatform Gen: 2014–2026

2023 Honda Grom (MSX125) Fuse Box Diagram, Amperages & Relay Diagnostics

Complete fuse box location, blade fuse slot mappings, ISO color codes, blown fuse symptoms and dark current parasitic drain testing for 2023 Honda Grom (MSX125).

Technical PassportOEM VERIFIED

Engine

124cc

Cooling

Air-Cooled

Final Drive

420 Chain

Engine Oil

0.90 L (0.95 US qt)

Spark Plug

NGK CPR6EA-9

Front Tire

120/70-12

Gen 2014–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2014 through 2026.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available

1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2023 Honda Grom (MSX125).

Configure Service Bundles→

Select Model Year:(Active: 2023)
13 Production Years (2014–2026)

2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Suggested Items3 Verified Workshop Consumables Available for this Job

View Suggested Items ↓

CIRCUIT HEALTH DECKMain: 30A Blade / Starter Magnetic SwitchSpec: < 1.5 mA Quiescent

FUSE BOX, RELAY ASSIGNMENTS & PARASITIC DRAIN ISOLATOR

Fuse & Relay Location: Fuse box located under front seat or behind left side cover; Main 30A fuse integrated into starter magnetic switch near battery.

Select Fuse to Inspect Circuits & Failure SymptomsFormat: Mini Blade (ATM)

10A

SLOT: IGNITION

PGM-FI & Ignition

Rating: 10 Amps

Downstream Protected Components:

Engine Control Module (ECM)Ignition CoilsCrank Sensor

Mechanic Diagnostic: Symptoms If Blown

Starter motor cranks engine but no ignition spark occurs.

Shop Replacement Fuses

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

No Active Federal Safety Recalls Reported

The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2023 Honda Grom (MSX125) platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

1 Documented Bulletin

Bulletin #HON-16V661Safety Recall KC4 (MTB 15216): Grom (MSX125) Fuel Pump Replacement & ECM Initialization

Source: Honda_Grom_Recall16V661_8528.pdf

Mandated Torques:Torque: 12 N·m (1.2 kg-m, 9 lbf·ft) (Fuel Pump Base Flange Nuts - Crisscross 2-3 Stages)Torque: 10 N·m (7 lbf·ft) (Fuel Tank Shroud Screws)

Consumable Specs:Genuine Fuel Pump Gasket 17572-GGL-J00Genuine Dust Seal 17518-GGL-J00SCS Short Connector 070PZ-ZY30100 for ECM Reset

Genuine Part Numbers:06160-K26-31617572-GGL-J0017518-GGL-J00

HONDA GROM 125 FUEL SYSTEMExploded View: In-Tank Fuel Pump & ECM Calibration (Safety Recall 16V-661 / KC4)

KIT # 06160-K26-316NHTSA 16V-661

Remedy Fuel Pump Assembly (Green Paint Mark)

Genuine Kit # 06160-K26-316 (Supersedes 06160-K26-306)

Base Nuts: 12 N·m (1.2 kg-m, 9 lbf·ft) Crisscross

CRITICAL SAFETY & EMISSIONS RECALL (Recall 16V-661 / Service Bulletin Grom125 #1 / KC4). Replaces defective fuel pump prone to resin impeller swelling and pump seizure. COUNTERMEASURE IDENTIFICATION: Verified by a green paint mark on the top of the pump housing and a black cap cover. DO NOT USE old recall kit 06160-K26-306.