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P0352 on Lexus: Symptoms, Causes & Fix

Ignition Coil B Primary/Secondary Circuit Malfunction

Official technical diagnostic wire for fault code P0352 specifically affecting Lexus vehicles (ES, RX, NX, GX, LX).

Sensor Voltage Ref
0.1V – 5.0V Ref
Lexus Factory Standard
CAN Bus Speed
500 kbps CAN-FD
ISO 15765-4 Diagnostic Bus
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$100 - $350 (DIY: $30 - $90)
Parts & Labor DIY
Model-Specific Diagnostic Wires

Select Your Lexus Model for P0352:

6 Models Available

1. Common Symptoms on Lexus Vehicles

When Lexus Engine Control Modules (ECM) trigger fault code P0352, drivers typically report:

Flashing CEL on Lexus Powertrains
Violent engine shudder on Lexus Powertrains
Major power loss on Lexus Powertrains
Accompanied by P0302 on Lexus Powertrains

2. Root Causes on Lexus Engines

Historical diagnostic claims across Lexus engines point to the following failure distribution:

55%
Dead Cylinder 2 ignition coil (Lexus OEM Part)
25%
Damaged harness wiring (Lexus OEM Part)
12%
Loose connector (Lexus OEM Part)
8%
PCM coil driver fault (Lexus OEM Part)

3. Step-by-Step Fix Protocol for Lexus

01
Perform Coil Swap Test

Swap Coil 2 with Coil 1. If code becomes P0351, replace coil. on Lexus engines.

Required Tool: 10mm Socket, Scanner
02
Check Harness Voltage

Verify 12V power and trigger pulse. on Lexus engines.

Required Tool: Multimeter
03
Install New Ignition Coil 2

Replace Coil B with OEM part. on Lexus engines.

Required Tool: 10mm Socket, Spark Plug Socket
04
Clear Codes and Verify

Clear DTCs and confirm zero misfires. on Lexus engines.

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

Equipment for Diagnosing Lexus (P0352)

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 Lexus.

$36 – $68 Prime
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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.

Compare OEM & Aftermarket Replacement Sensors for LexusVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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4. Lexus P0352 Frequently Asked Questions

What does code P0352 mean on a Lexus?

On Lexus vehicles, P0352 indicates that the Engine Control Module (ECM) detected ignition coil b primary/secondary circuit malfunction. This typically points to Dead Cylinder 2 ignition coil or Damaged harness wiring.

Can I continue driving my Lexus with code P0352?

No. Cylinder 2 ignition coil has failed. Because this code carries a Critical severity rating on Lexus powertrains, we recommend scanning live data values promptly to prevent secondary damage.

How much does it cost to fix code P0352 on a Lexus?

Estimated DIY parts cost ranges from $100 - $350 (DIY: $30 - $90), while professional shop repairs at an authorized Lexus dealership or independent specialist typically range from $180 to $380 including diagnostic labor.