Volvo: volvo s80 obd code, volvo s80 t6, 2000 volvo s80 t6

Question
ray,
2000 s-80 t-6 threw me a code P1152. I think it is rear O2 sensor. Tell me what it really is or could be and i'd be forever gratful. Need to fix it myself - have lift.
thank you
f. jones

Answer
Frank,
You have given a generic code and sometimes that is not a complete or as specific as the factory code. Here is what I found, code P1152 is close to Volvo ECM-290A  

    
2000 Volvo S80 T6 L6-2.8L Turbo VIN 90 B6284T
Vehicle Level  Powertrain Management  Computers and Control Systems  Testing and Inspection  Diagnostic Trouble Code Tests and Associated Procedures  Manufacturer Code Charts  Engine Control System  ECM-290A  Diagnostic Trouble Code (DTC) Information    




Condition
Probe monitoring begins after probe preheating diagnostics are complete. Diagnostic trouble code (DTC) ECM-290A is stored if there is a fault in the front heated oxygen sensor (HO2S) or its wiring causing the signal to deviate from its permitted range.

The control module registers four different types of fault:
Signal too high The control module compares the front and rear adaptation values. A diagnostic trouble code (DTC) is stored when the values deviate by more than 3 %. Note! The fault may be in the front or rear heated oxygen sensor (HO2S) circuit.
Signal too low The control module monitors the aging of the probe by checking its dynamics when switching between lean and rich mixtures. The diagnostic trouble code (DTC) is stored if the control module registers that the probe is operating too slowly.
Signal missing The control module monitors cross-induction from the probe preheating. Diagnostic trouble code (DTC) is stored when cross induction exceeds the permitted value.
Faulty signal A diagnostic trouble code (DTC) stored when:
the control module registers that the signal from the front probe is above 4.8 V for too long
the signal from the front probe does not deviate from [lambda]= 1
the signal from the front probe is showing a lean fuel mixture while the signal from the rear probe is showing a rich mixture
the signal from the front probe is showing a rich fuel mixture while the signal from the rear probe is showing a lean mixture.

Condition
The rear heated oxygen sensor (HO2S) control is disabled
Three-way catalytic converter (TWC) diagnostic is disabled

Possible source

Signal too high:
air leakage in the exhaust system
short-circuit to power supply or ground in the signal cable (+) or supply cable for pump current
defective heated oxygen sensor (HO2S)

Signal too low:
the cable for calibration current and the cable for pump current are short-circuited to each other
open-circuit in signal cable (-)
open-circuit in cable for calibration current
defective heated oxygen sensor (HO2S).

Signal missing:
Signal cable (+) and signal cable (-) short-circuited to each other
one of the cables for heated oxygen sensor (HO2S) preheating is short-circuited to the probe's other wiring
defective heated oxygen sensor (HO2S).

Faulty signal:
short-circuit to supply voltage or ground in signal cable (+)
short-circuit to supply voltage or ground in signal cable (-)
short-circuit to supply voltage or ground in pump current cable
short-circuit to supply voltage or ground in calibration current cable
open-circuit in signal cable (+)
defective heated oxygen sensor (HO2S).

Condition
malfunction indicator lamp (MIL) lit.