Chrysler Sebring 2004 Service Manual page 2304

Symptom:
P0418-AIR PUMP RELAY CIRCUIT
When Monitored and Set Condition:
P0418-AIR PUMP RELAY CIRCUIT
When Monitored: With the ignition on. Battery voltage greater than 10.4 volts.
Set Condition: An open or shorted condition is detected in the Air Pump Relay Control
circuit. One Trip Fault.
AIR PUMP RELAY OPERATION
AIR PUMP RELAY GROUND
AIR PUMP RELAY
AIR PUMP RELAY CONTROL CIRCUIT OPEN
AIR PUMP RELAY CONTROL CIRCUIT SHORT TO GROUND
PCM
TEST
1 NOTE: Before continuing the following test, always check the Air Pump
Assembly in-line connectors. Ensure that there is no terminal damage,
corrosion or backed out terminals. Verify that there is good wire to terminal
connection in the connector.
Ignition on, engine not running.
With the DRBIII , actuate the Air Pump Relay.
Is the Air Pump Relay operating?
Yes → Refer to the INTERMITTENT CONDITION symptom in the
→ Go To 2
No
2 Turn the ignition off.
Disconnect the Air Pump Relay harness connector.
Using a 12-volt test light connected to battery voltage, probe the Air Pump Ground
circuit in the Air Pump Relay harness connector.
Does the test light illuminate brightly?
Yes → Go To 3
→ Repair the Air Pump Relay Ground circuit.
No
POSSIBLE CAUSES
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
375
APPLICABILITY
All
All