Engine Controls System: 164021

164021 - P0342

Information saved in
DME

Fault code
164021 - P0342

Fault text
Inlet-camshaft sensor: signal low

Fault description
The diagnostic function monitors the intake camshaft
position sensor.

Condition for fault identification
Test condition:
The fault is recognized when the engine is turning over and
no fault related to the crankshaft sensor is present.
Potential problem source(s):
- Defect in wiring harness between DME and camshaft
position sensor or crankshaft sensor.
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- Engine ON

Condition for fault memory entry
1 Camshaft rotates but no signal from camshaft reluctor

Action in service
- Check wiring harness between DME and camshaft position
sensor
- Camshaft sensor defective

Fault effect and breakdown warning
Breakdown notice:
The engine reverts to its emergency limp-home program,
continued vehicle operation is possible, because power is
reduced the driver should refrain from passing maneuvers.
Possible apparent symptoms:
Extended starting times and power loss, if it appears in
combination with an exhaust camshaft sensor fault then no
restart is possible

Driver information
Warning light:
MY10 ECE:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: off
- CC message: on
MY10 US:
- US emissions warning lamp: on
- US electronic engine power reduction: on
- CC message: on
MY11 ECE:
- ECE emissions warning lamp: on'
-Electronic engine output reduction, ECE: on
- CC message: on

Service instruction
None