Chrysler PT Cruiser 2001 Service Manual Supplement page 2622

DRIVEABILITY - GAS
P1299-VACUUM LEAK FOUND (IAC FULLY SEATED) —
TEST
4 Turn ignition on.
With the DRB in Sensors, monitor the Throttle Position Sensor voltage while slowly
opening the throttle to wide open.
Is the maximum voltage at least 3.4 volts at wide open throttle?
Yes → Go To 5
→ Replace the Throttle Position Sensor.
No
5 If there are no possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace the Powertrain Control Module.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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Continued
APPLICABILITY
All
All