AutoCodes – Buick – P1370 Buick

P1370 Buick Code - Ignition Control Module 4X Reference Circuit Too Many Pulses

Quick Answer

P1370 Buick indicates Ignition Control Module 4X Reference Circuit Too Many Pulses. Common causes include Faulty Crankshaft Sensor, Crankshaft Sensor harness is open or shorted, Crankshaft Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1370 Buick indicates Ignition Control Module 4X Reference Circuit Too Many Pulses.
Common causes: Common causes include Faulty Crankshaft Sensor, Crankshaft Sensor harness is open or shorted, Crankshaft Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,433

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1370 Buick Description

OBDII Code P1370 Buick - Ignition Control Module 4X Reference Circuit Too Many Pulses - AutoCodes.com — P1370 Buick Code - Ignition Control Module 4X Reference Circuit Too Many Pulses

What does this mean?

What are the Possible Causes of the DTC P1370 Buick?

Faulty Crankshaft Sensor
Crankshaft Sensor harness is open or shorted
Crankshaft Sensor circuit poor electrical connection
Faulty Ignition Control Module

How to Fix the DTC P1370 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1370 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1370 Buick code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.