LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2007 >> XC70 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Ignition And Control Systems - Symptom Related Diagnostic Procedures (XC) >> Checking Compression (B5244T3; 2001-2002) >> Checking compression >> Compression test >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Compression test: Notes

Special tools: 

1158540

9999689

NOTE:

As the illustrations in the information are used for different model years and / or models, certain variations may occur. However, the essential information in the illustrations is always correct.

Fig 1: Identifying Low & High Voltage Circuit Caution
GLL108573Courtesy of VOLVO CARS OF NORTH AMERICA.
CAUTION:

The ignition system operates at high ignition charges  and produces dangerous voltages  in both the low and high voltage circuits.

There is dangerous voltage throughout the entire ignition system  including connectors etc.