Intermittent Failures
The term "intermittent failure" means a system may
have had a failure, but it checks OK now. If the
malfunction indicator lamp (MIL) on the dash does not
come on, check for poor
Electronic Control System
The functions of the fuel and emission control systems are managed by the
powertrain control module (PCM).
Self-diagnosis
The PCM detects a failure of a signal from a sensor
Without Navigation
The audio system has a self-diagnostic function. To run the self-diagnostic
function, do the following:
How to check for audio system condition
NOTE: The audio unit must be in the code enter screen before doing the
self-diagnostic function.
1. Turn the ignition switch to the AC
DTC P0506: Idle Control System RPM Lower
Than Expected
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information.
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed