Chrysler Concorde 2004 Service Manual page 875

P0509-IAC VALVE SENSE CIRCUIT HIGH —
TEST
3 Turn the ignition off.
Disconnect the IAC Motor harness connector.
Turn the ignition on.
With the DRBIII , actuate the ASD Relay.
Measure the voltage of the (K60) IAC Signal circuit in the IAC Motor harness
connector.
Is the voltage above 0.5 of a volt?
Yes → Repair the short to voltage in the (K60) IAC Signal circuit.
No
4 Turn the ignition off.
Disconnect the IAC Motor harness connector.
Turn the ignition on.
With the DRBIII , actuate the ASD Relay.
Measure the voltage of the (K39) IAC Motor Driver circuit in the IAC Motor harness
connector.
Is the voltage above 0.5 of a volt?
Yes → Repair the short to voltage in the (K39) IAC Motor Control circuit.
No
5 Turn the ignition off.
Disconnect the IAC Motor harness connector.
Measure the resistance across the IAC Motor harness connector.
Is the resistance below 5.0 ohms?
Yes → Repair the (K60) IAC Motor Signal circuit short to the (K39) IAC
No
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Go To 4
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Go To 5
Motor Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Go To 6
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
Continued
217
APPLICABILITY
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All
All
All