P0506

2B58 - P0506

Information saved in
DME

Fault code
2B58 - P0506

Fault text
Idle controller monitoring

Fault description


Condition for fault identification
Test condition:
Vehicle stationary
rf > md_rf_min
tmot > K_LeerlaufR_DIAG_TMOT
t�l > K_LeerlaufR_DIAG_TOEL
fra_aq_adapt_roh in tolerance range
Terminal condition: Terminal 15
Voltage condition:
none

Condition for fault memory entry
Engine rpm is too low by
K_LeerlaufR_DIAG_N_ZU_KLEIN and idle R is at upper
limit for K_LeerlaufR_DIAG_T

Action in service
1. Check air-induction system for obstructions
2. Check idle actuator hose system for crimped and plugged
hoses

Fault effect and breakdown warning
No closed-loop control of idle

Driver information
Warning light:
none

Service instruction
none