I KEEP GETTING THESE 2 CODES IN COLD WEATHER THEN THAY GO AWAY AFTER A DAY ARE SO . I KNOW THE PO483 IN THE CLUTCH FAN WHAT DO I CHECK FOR THE P2127

 

P2127 - Apps 2 Voltage Too Low

APPS
ECM
(K29) APPS NO. 2 SIGNAL CIRCUIT OPEN
(F856) APPS NO. 2 5-VOLT SUPPLY OPEN
(K29) APPS NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND
(K29) APPS NO. 2 SIGNAL CIRCUIT SHORTED TO OTHER CIRCUITS
(F856) APPS NO. 2 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(F856) APPS NO. 2 5-VOLT SUPPLY CIRCUIT SHORTED TO OTHER CIRCUITS
INTERMITTENT CONDITION

Remove the connection under the hood (the APPS is on top of the CP3 pump, drivers side) and clean it up, then let it dry.

 

THANKS I WILL GIVE IT A TRY

 

im having the same problem and have checked the connection on the cp3 pump multiple times with no sucess as well as replace the entire accelerator petal unit with. any ideas where to go next?