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P0351TeslaTesla Model S HubAll Tesla P0351Critical Severity

P0351 on Tesla Model S

Ignition Coil A Primary/Secondary Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0351 specifically for the Tesla Model S (2020–2026, Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s)).

Verified OEM Telemetry & Field Repair Tree
Tesla Model S2020–2026
Tesla Model S
EVDual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Model S SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$100 - $350 (DIY: $30 - $90)
Parts & Labor DIY
Check P0351 On Another Tesla Model:
Diagnose P0351 on Specific Model S Model Year:

1. Symptoms of P0351 on Tesla Model S

When the Engine Control Module (ECM/PCM) on your Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s)) logs fault code P0351, drivers commonly observe:

Flashing Check Engine Light on Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s))
Severe engine shuddering and jerking under acceleration on Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s))
Hard misfire on Cylinder 1 (accompanied by P0301) on Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s))
Strong smell of unburned gasoline from exhaust on Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s))
Tesla Model S OBD-II Port Location
The 16-pin diagnostic connector is located Under center dash / driver kick panel bulkhead. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Tesla Model S

Historical warranty claims and technical repair bulletins for Tesla Model S point to the following failure distribution:

55%
Failed ignition coil pack on Cylinder 1 (Coil A) (Tesla OEM Part)
25%
Broken or melted wiring harness to ignition coil 1 (Tesla OEM Part)
12%
Corroded or broken terminal pins in coil electrical connector (Tesla OEM Part)
8%
Burned ignition driver transistor (IGBT) inside the ECM/PCM (Tesla OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Tesla Model S.

3. Step-by-Step DIY Repair Guide for Tesla Model S

01
Locate Coil A (Cylinder 1 Ignition Coil)

Identify Cylinder 1 ignition coil pack mounted on the valve cover. on the Tesla Model S equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s).

Required Tool: Flashlight
02
Perform Coil Swap Test

Swap Coil 1 with Coil 2. Clear codes and restart engine. If code switches to P0352 (Coil B), the ignition coil is 100% defective. on the Tesla Model S equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s).

Required Tool: 10mm Socket, Ratchet, OBD-II Scanner
03
Test Wiring Harness if Code Remains P0351

Check for 12V battery power, chassis ground, and 5V trigger pulse from the PCM on the 3-pin / 4-pin harness plug. on the Tesla Model S equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s).

Required Tool: Digital Multimeter, Test Light
04
Replace Ignition Coil & Spark Plug

Install a new OEM ignition coil (e.g. Denso, Motorcraft, Delphi) and replace the spark plug on Cylinder 1. on the Tesla Model S equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s).

Required Tool: 5/8 Spark Plug Socket, 10mm Socket, Ratchet
05
Clear Trouble Codes and Road Test

Clear DTCs and verify smooth acceleration under load. on the Tesla Model S equipped with Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Tesla Model S (P0351)

Prime Fast Delivery & Verified Fitment
OEM Ignition Component

Direct-Fit Laser Iridium Spark Plugs (Set of 4/6)

4.8 / 5.0 (Top Rated)

Pre-gapped iridium spark plugs engineered to restore smooth combustion on Tesla Model S.

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Ignition Service Tool

Magnetic Swivel Spark Plug Socket Set

4.8 / 5.0 (Amazon Choice)

360-degree magnetic swivel socket prevents ceramic plug cracks inside deep engine spark wells.

$16.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Tesla Model S

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Tesla Model S:

4. Tesla Model S P0351 FAQs

What causes code P0351 to trigger on a Tesla Model S?

On the Tesla Model S (Dual Motor AWD / Tri-Motor Plaid (1,020 HP / 0-60 in 1.99s)), P0351 is most frequently caused by Failed ignition coil pack on Cylinder 1 (Coil A) or Broken or melted wiring harness to ignition coil 1.

Where is the OBD-II port located on my Tesla Model S?

On the Tesla Model S, the 16-pin DLC diagnostic connector is located Under center dash / driver kick panel bulkhead. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Tesla Model S with code P0351?

No. Cylinder 1 ignition coil has failed completely, causing an active misfire and dumping unburned fuel into the catalytic converter. Given that P0351 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.