Standard Ignition YA138 Acceleration Sensor

Volvo Acceleration Sensor for Stability Systems

Standard Ignition YA138 is an acceleration sensor used in Volvo stability and crash-sensing applications. It features a female connector, one connector cavity, and a 3-blade male terminal layout for direct electrical interface in the correct vehicle system.

Fits 1993-1997 Volvo 850, Accelerometer; fits 1996-1997 Volvo 960, Accelerometer; fits 1997-1998 Volvo S90; fits 1997-1998 Volvo V90; fits 1998-2000 Volvo S70, Accelerometer; fits 1998-2000 Volvo V70, Accelerometer; fits 1998-2004 Volvo C70, Accelerometer.

Key Features

• Standard Ignition YA138 acceleration sensor for Volvo body sensor applications
• Female connector with 1 connector interface
• 3 male blade terminals for the specified electrical connection
• Direct-fit replacement for listed Volvo models and years
• Cross-references Standard Ignition YA138 and related OE-style numbers such as 6842539

Detailed Description

Standard Ignition YA138 is an acceleration sensor used in Volvo systems that monitor vehicle motion and impact-related inputs. The connector and terminal configuration are specified for the original application, helping maintain proper electrical communication in the sensor circuit. This part number is listed for Volvo C70, S70, V70, S90, V90, 850, and 960 applications across the model years shown.

This part cross-references 6842539 for the same application. When replacing a Volvo acceleration sensor, confirm the connector style, terminal count, and vehicle year before installation. Standard Ignition YA138 is a focused replacement choice for Volvo 850 and Volvo C70 acceleration sensor service, as well as related S70 and V70 applications.

What It Helps Resolve

• Fault codes related to acceleration sensor signal loss
• Stability or crash-sensing system warning lights
• Intermittent sensor communication caused by connector or terminal mismatch
• Improper sensor output from a worn or failed original unit
• Restoration of correct input to the vehicle’s body sensor circuit

Installation Notes and Tips

Verify the vehicle’s original connector gender, terminal type, and terminal count before installation. Compare the existing sensor location and harness connection to the replacement part to confirm the correct Volvo application. Clear diagnostic trouble codes after installation and recheck system operation.

Quality Assurance

Standard Ignition supplies replacement electrical components for OE-style service applications. YA138 is built to match the listed fitment and connector specifications for the vehicles shown.