Dodge ZB 2005 Service Manual page 1264

P1294-TARGET IDLE NOT REACHED —
TEST
3 Inspect the Air Induction System for the following problems.
Restrictions: Dirty Air Cleaner, Foreign material in the air intake tube, etc.
Leaks: Air Intake tube connection, Air Cleaner housing, etc.
Were any problems found?
Yes → Repair or replace as necessary.
→ Go To 4
No
4 Inspect the throttle body plate for carbon build up or other restrictions.
Inspect the throttle linkage for binding and smooth operation.
Ensure the throttle plate is resting on the stop at idle.
Remove IAC, inspect the pintle and its seating surface inside the throttle body.
Were any problems found?
Yes → Clean and/or replace the throttle body as needed.
→ Go To 5
No
5 Turn the ignition off.
Disconnect IAC Motor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance of each of the IAC Driver circuit from the IAC Motor harness
connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open in the appropriate IAC Driver circuit.
No
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
DRIVEABILITY - GAS
Continued
143
APPLICABILITY
All
All
All
All