Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2007XC90 AWD L6-3.2L VIN 98 B6324SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONP CODE CHARTSP1157DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2007 Volvo XC90 AWD L6-3.2L VIN 98 B6324S
Diagnostic Trouble Code (DTC) Information
2007 Volvo XC90 AWD L6-3.2L VIN 98 B6324SSECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information
Condition
The engine control module (ECM) continuously detects the voltage of the rear lambda-sond (bank 2).
The engine's cylinders are counted starting with the cylinder farthest from the engine's flywheel.
If engine control module (ECM) detects that the voltage is not below or above a certain value, the engine control module (ECM) interprets this as a malfunction and generates diagnostic trouble code.
The diagnostic trouble code can be diagnosed after approx. 3-5 minutes with the engine running.
Substitute value
- Rear heated oxygen sensor control is shut off.
Possible source
- Contact resistance and oxidation in connections.
- The signal cable is short-circuited to ground.
- Open circuit on signal cable.
- Damaged rear heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator light (MIL) on.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.