2A9B

2A9B - P0366

Information saved in
DME

Fault code
2A9B - P0366

Fault text
Camshaft sensor, exhaust, signal

Fault description
Camshaft Position Sensor 'B' Circuit Range/Performance
(Bank 1)

Condition for fault identification
Test condition:
Engine turns over, synchronization with NWE fails
Terminal condition: Terminal 15 on
Voltage condition:
none

Condition for fault memory entry
On every camshaft flank when the flank was outside
tolerance. At engine start only.

Action in service
1. Check signal wire for short to positive, ground, open wire.
2. Replace camshaft sensor.
3. Check positions (valve timing setting) of camshaft
reluctors
4. Check timing chain and chain tensioner assembly.
5. Check VANOS solenoids for dirt and contamination

Fault effect and breakdown warning


Driver information
Warning light:
Nothing, as double fault is present

Service instruction
none