NOTE:
Check the radio reception in an open area.
Compare it to a known-good vehicle of the same
model, year, and trim level whenever possible.
If necessary, have the customer demonstrate the
sym
1. With the ignition switch ON (II), push the power
switch ON to see if navigation unit turns ON.
Does the navigation unit display operate properly, and does the audio sound
normal? YES-Intermittent
NOTE:
Set the fader and balance positions to the center.
Before doing symptom troubleshooting, do the
power switch will not turn ON troubleshooting.
1. Check that the volume button is not set to
1. Loosen the upper torque rod mounting bolt (A).
2. Remove the air cleaner housing assembly.
3. Remove the powertrain control module (PCM)
cover, then remove the three bolts securing the
PCM.
4. Remove the PCM bracket.
5. Support the transmission with a jack and wood
block under the transmissio
Component Location Index
EXHAUST GAS RECIRCULATION (EGR) VALVE
POWERTRAIN CONTROL MODULE (PCM)
EXHAUST GAS RECIRCULATION (EGR) PLATE
DTC Troubleshooting
DTC P0401: EGR Insufficient Flow
NOTE: Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the genera