Possible Causes

Possible causes are:

• CKP sensor malfunction.
• ECT sensor malfunction.
• PCM malfunction.
• Short circuit to ground Blue/Orange wire between VTCS solenoid valve 2-pin harness connector terminal "B" and PCM 30-pin harness connector terminal "4T".
• TP sensor malfunction.
• VTCS shutter valve actuator malfunction (stuck closed).
• VTCS shutter valve malfunction (stuck closed).
• VTCS solenoid valve malfunction.