Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Ground to Components Index (2021 2022 2023)
| Ground Number | Component(s) or circuit(s) grounded | Feature |
|---|---|---|
| G1 | 12 volt battery | |
| G2 | Engine mount bracket | |
| G3 | Transmission mount bracket | |
| G101 | Body ground (G204), CKP sensor, CMP sensor, EGR valve, Ignition coils, PCM (six wires), Rocker arm oil control solenoids, Rocker arm oil pressure switches, Shielding between the PCM and the high pressure fuel control solenoid (two wires), Shielding between the PCM and the injectors (twelve wires), Shielding between the PCM and the Knock sensor 1, Shielding between the PCM and the Knock sensor 2, Shielding between the TCM and the hydraulic control unit/sensor unit, TCM (two wires) | |
| G201 | Left front fog light, Left front parking light* 2, Left front parking light/daytime running light/front side marker light* 1, Left front side marker light* 2, Left front turn signal light, Left headlight | *1: With LED daytime running light *2: Without LED daytime running light |
| G202 | Body ground (G261), Millimeter wave radar, Radiator fan motor, Right front fog light, Right front parking light* 2, Right front parking light/daytime running light/front side marker light* 1, Right front side marker light* 2, Right front turn signal light, Right headlight |
*1: With LED daytime running light *2: Without LED daytime running light |
| G203 | VSA modulator-control unit | |
| G204 | Body ground (G101), CKP sensor, CMP sensor, Fan control relay, PCM, Rocker arm oil pressure switches, Shielding between the PCM and the Knock sensor 1, Shielding between the PCM and the Knock sensor 2, Shielding between the PCM and the high pressure fuel control solenoid (two wires), Shielding between the PCM and the injectors (twelve wires), Tailgate latch synchronizer actuator relay (LOCK), Windshield washer motor, Windshield washer motor relay, Windshield wiper intermittent relay circuit (built into the relay circuit board) | |
| G251 | AC inverter ACC relay* 1, Engine mount control unit, Front blower power transistor, Rear blower power transistor, Hood latch switch, Washer fluid level switch* 2 |
*1: With AC power outlet *2: With washer fluid level sensor |
| Ground Number | Component(s) or circuit(s) grounded | Feature |
|---|---|---|
| G261 | Body ground (G202) | |
| G351 | EPS control unit | |
| G352 | 12 volt battery fan, Brake fluid level switch, Console accessory power socket relay, DC-DC converter, DC-DC converter ACC relay, DC-DC converter IG1 relay 1, DC-DC converter IG1 relay 2, Heated windshield wiper area (two wires)*, In-bed trunk lid release actuator relay circuit (built into the under-dash fuse/relay box), Power door lock relay circuit (DR UNLOCK) (built into the under-dash fuse/relay box), Power door lock relay circuit (LOCK) (built into the under-dash fuse/relay box), Power door lock relay circuit (UNLOCK) (built into the under-dash fuse/relay box), Starter (via diode), Windshield wiper motor |
*: With heated windshield wiper area |
| G401 | ANC/active sound control unit, Automatic lighting control unit-sensor* 1, Body ground (G451), Cargo area light switch, CMBS OFF switch, Driver's door inner handle light* 12, Driver's door key cylinder switch, Driver's door lock knob switch, Driver's door outer handle touch sensor/lock switch, Driver's door pocket light* 13, Driver's power window motor, Driving position memory switch* 2, ECON switch, Electric steering lock* 3, Front accessory power socket relay, Front seat heater relay* 5, Fuel fill door opener switch, Gauge control module (two wires), Hazard warning switch, Heated steering wheel control unit (via cable reel)* 6, Heated steering wheel relay* 6, Heated steering wheel (via cable reel)* 6, Heated windshield wiper area switch* 7, Keyless access/TPMS control unit, Left BSI alert indicator* 9, Left power mirror defogger* 10, Left side turn signal light* 11, MICU, Paddle shifter+/- (upshift/downshift switch), Parking and back-up sensor control unit* 8, Power mirror control unit* 2, Power mirror switch, Power window master switch (two wires), Steering angle sensor, Trailer electric brake connector, Ventilated seat relay* 4, VSA OFF switch | *1: Without automatic wiper *2: With DPMS *3: With electric steering lock *4: With ventilated seat *5: Without ventilated seat *6: With heated steering wheel *7: With heated windshield wiper area *8: With parking and back-up sensor control unit *9: With BSI *10: With mirror defogger *11: With side turn signal light *12: With inner handle light *13: With pocket light |
| Ground Number | Component(s) or circuit(s) grounded | Feature |
|---|---|---|
| G402 | CAN gateway, Dashlights brightness control switch, Data link connector (DLC) (two wires) |
|
| G403 | SRS unit | |
| G404 | Audio-navigation unit* 1, Audio unit* 2 | *1: With navigation *2: Without navigation |
| G405 | Climate control unit, Console accessory power socket, Console box light, Front accessory power socket, Front blower motor relay, Front passenger's door inner handle light* 7, Front passenger's door lock knob switch, Front passenger's door outer handle touch sensor/lock switch, Front passenger's door pocket light* 8, Front passenger's power window switch, Glove box light, In-bed trunk lid main switch, Intelligent traction management switch* 1, Snow switch* 2, Keyless access/TPMS control unit, Rear blower motor relay, Right BSI alert indicator* 3, Right power mirror defogger* 4, Right side turn signal light* 5, SBW shifter control module, Stereo amplifier, Wireless charger* 6 | *1: AWD *2: 2WD *3: With BSI *4: With mirror defogger *5: With side turn signal light *6: With wireless charger *7: With inner handle light *8: With pocket light |
| G451 | Body ground (G401), Heated steering wheel control unit* |
*: With heated steering wheel |
| G501 | Automatic dimming inside mirror* 6, Automatic lighting/rain sensor* 1, Driver's vanity mirror lights* 2, Front individual map light* 4, HomeLink ® unit* 5, Interior light switch* 4, Moonroof motor-control unit* 3, Moonroof switch* 3, Multipurpose camera unit, Passenger's vanity mirror lights* 2, Roof console module* 3 | *1: With automatic wiper *2: With vanity mirror light *3: With moonroof *4: Without moonroof *5: With HomeLink ® *6: With automatic dimming inside mirror |
| Ground Number | Component(s) or circuit(s) grounded | Feature |
|---|---|---|
| G601 | Driver's lumbar support switch (two wires)* 1, Driver's power seat adjustment switch (two wires)* 3, Driver's seat belt buckle switch, Driver's seat cushion blower motor* 4, Driver's seat heater, Driver's seat position sensor, Driver's seat-back blower motor* 4, Front seat heater control unit* 5, Left rear door lock knob switch, Left rear power window switch, MICU (two wires), Power seat control unit (three wires)* 2, Rear seat heater relay* 6, Tailgate latch synchronizer actuator relay (UNLOCK), Ventilated seat control unit (two wires)* 4 | *1: With lumbar support *2: With DPMS *3: With power seat and without DPMS *4: With ventilated seat *5: Without ventilated seat *6: With rear seat heater |
| G602 | Back power window close relay* 1, Back power window open relay* 1, Fuel fill door opener solenoid, Fuel pump, High mount brake light, Left rear seat heater (two wires)* 2, Rear seat heater control unit* 2, Right rear seat heater (two wires)* 2, Trailer charge relay, Trailer lighting control unit (two wires), Trailer small light relay |
*1: With back power window*2: With rear seat heater |
| G603 | Front passenger's power seat adjustment switch (two wires)* 1, Front passenger's seat belt buckle switch, Front passenger's seat heater, Shielding between the PCM and the FTP sensor (two wires), Passenger's seat cushion blower motor* 3, Passenger's seat-back blower motor* 3, Rear control panel* 4, Right rear door lock knob switch, Right rear power window switch, USB charger unit A* 2 | *1: With power seat *2: With USB charger unit A *3: With ventilated seat *4: With rear seat heater |
| G604 | Rear window defogger | |
| G605* | AC Inverter unit | *: With AC power outlet |
| G701 | Body ground (G801)*, In-bed trunk lid key cylinder switch, In-bed trunk lid latch switch, In-bed trunk lid outer handle switch, In-bed trunk lid release actuator, i-VTM control unit*, Left cargo area light, Rear differential pump motor*, Right cargo area light, Tailgate switch |
*: AWD |
| G702 | Keyless buzzer, Left back-up light, Left brake light, Left license plate light, Left rear turn signal light, Left side BSI radar unit*, Left taillight/rear side marker light, Right side BSI radar unit (two wires)*, Tailgate latch synchronizer, Trailer lighting connector |
*: With BSI |
| Ground Number | Component(s) or circuit(s) grounded | Feature |
|---|---|---|
| G703 | Right back-up light, Right brake light, Right license plate light, Right rear turn signal light, Right taillight/rear side marker light |
|
| G801* | Body ground (G701), i-VTM control unit, Rear differential pump motor |
*: AWD |
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.