Possible Cause

NOTE:  The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

• Shift solenoid valve B SHB line open (includes a loose or disconnected connector)
• Shift solenoid valve B internal circuit open
• Shift solenoid valve B power supply line open
• Shift solenoid valve B power supply line short to ground
• PCM internal circuit failure