Symptom:
P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT
When Monitored and Set Condition:
P0660-MANIFOLD TUNE VALVE SOLENOID CIRCUIT
When Monitored: With the ignition on. ASD Relay energized. Battery voltage greater
than 10 volts.
Set Condition: The PCM senses the MTV is not at the desired state.
POSSIBLE CAUSES
GOOD TRIP EQUAL TO ZERO
GROUND CIRCUIT OPEN
MTV RELAY OUTPUT CIRCUIT OPEN
FUSED B+ CIRCUIT
ASD RELAY OUTPUT CIRCUIT
MTV RELAY CONTROL CIRCUIT SHORTED TO GROUND
MTV RELAY
MTV RELAY CONTROL CIRCUIT OPEN
MANIFOLD TUNING VALVE SLOENOID
PCM
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTC’s.
Is the Good Trip displayed and equal to zero?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
2 Turn the ignition off.
Disconnect the Manifold Tune Valve Solenoid harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the MTV Relay Output circuit
in the MTV Solenoid harness connector.
With the DRBIIIt, actuate the MTV Relay.
Does the 12-volt test light illuminate brightly?
All
No → Go To 3
Yes → Go To 10
235
DRIVEABILITY - NGC
To Next Page
Loading...
Need help?
General
