Workshop Manual

6E–358
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0506 – Idle Air Control System Low RPM (Cont'd)
Step NoYesValue(s)Action
6 Replace the throttle valve.
Is the action complete?
— Go to Step 3 —
7 1. Check the following circuits for an open, short to
voltage, short to ground, or poor connection at the
PCM:
Accelerator position sensor 1 circuit.
Accelerator position sensor 2 circuit.
Sensor resistance.
2. If a problem is found, repair as necessary.
Was a problem found?
Vcc-GND
4–6kW
SIG-DND
change
resistance
Verify repair Go to Step 8
8 Replace the acceleration position sensor.
Is the action complete?
— Go to Step 9 —
9 Following below the DTCs stored: P1125, P1290,
P1295, P1299
—
Go to
applicable
DTC table
Go to Step 10
10 Following below the DTCs stored:P1514, P1515,
P1516, P1523, P1271, P1272, P1273
—
Go to
applicable
DTC table
Go to Step 11
11 Replace the PCM.
IMPORTANT: The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
— Verify repair —