Chrysler Pacifica CS 2004 Service Manual page 253

P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT —
TEST
3 Turn the ignition off.
Disconnect the MTV Solenoid harness connector.
Remove the MTV Relay from the IPM.
Measure the resistance of the MTV Relay Output circuit between the IPM and the
MTV Solenoid harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 4
No
4 Turn the ignition off.
Disconnect the MTV Relay from the IPM.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit in the IPM.
Does the test light illuminate brightly?
Yes → Go To 5
No
5 Turn the ignition off.
Disconnect the MTV Relay from the IPM.
Using a 12-volt test light connected to battery voltage, probe the MTV Relay Ground
circuit in the IPM.
Does the test light illuminate brightly?
Yes → Go To 6
No
6 Turn the ignition off.
Disconnect the MTV Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the MTV Relay Control circuit
in the IPM.
With the DRBIII , actuate the MTV Relay.
Does the 12-volt test light flash on and off?
No
Yes → Replace the MTV Relay.
7 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the MTV Relay from the IPM.
Measure the resistance of the MTV Relay Control circuit to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the MTV Relay Control circuit for a short to ground.
No
ACTION
→ Repair the MTV Relay Output circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Repair the Fused B+ circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Repair the MTV Relay Ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Go To 7
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
→ Go To 8
DRIVEABILITY - NGC
247
Continued
APPLICABILITY
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All
All
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All