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.
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HOMESERVICE MANUALSJEEP2010GRAND CHEROKEE LAREDO, 5.7 T, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSCONNECTOR END VIEWS & ELECTRICAL COMPONENT LOCATIONS (3 OF 4)RELAY-PTC 1 (D870A)
2010 Jeep Grand Cherokee Laredo, 5.7 T, 4WD
Relay-PTC 1 (D870A)
2010 Jeep Grand Cherokee Laredo, 5.7 T, 4WDSECTION Relay-PTC 1 (D870A)
Harness-Family: Virtual_PDC
Color: NULL
Gender: MALE
Part Number: Full_Relay
Part Description: Not Available
Connector No: D870A
Option: Standard
Repair Kit Part Number: Not Available
Cavity Count: null
| Pin | Circuit | Wire Color | Gauge/Size | Function | Option |
|---|---|---|---|---|---|
| 30 | A923 | RD | 12 | SWITCHED B(+) | N/A |
| 85 | K360 | GY | 20 | PTC 1 RELAY CONTROL | N/A |
| 86 | A15 | RD | 16 | FUSED B(+) | N/A |
| 87 | N113 | DB | 10 | PTC 1 RELAY OUTPUT | N/A |
RENDER: 1.0x
NO RELATED
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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.