P1327

168A81 - P1327

Information saved in
DME

Fault code
168A81 - P1327

Fault text
Knock sensor 2, signal: electrical fault KS (loose contact) or
KS loose

Fault description
The diagnostic function monitors the knock sensor's
electrical signal.

Condition for fault identification
Test condition:
The fault is logged in the ECU fault memory when the
reference level is too low relative to the program map.
Potential problem source(s):
- Knock sensor is defective or installed incorrectly
- Wiring harness defective
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine warmed to normal temp, above 80 °C
Time condition:
- None
Other conditions:
- Engine on
- Engine speed above 2000 rpm
- Relative charge factor: > 30%
- No load, no dynamic changes in engine speed

Condition for fault memory entry
Debounce via event counter

Action in service
- Check installation torque and installation position of sensor
- Check wiring harness
- Check engine for mechanical defects (chain, crankshaft
assembly)
- Refuel with RON 95 or higher
- Replace knock sensor

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
Possible reduction in power

Driver information
Warning light:
ECE:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: on
- CC message: on
MY10 US:
- US emissions warning lamp: on
- US electronic engine power reduction: on
- CC message: on

Service instruction
None