FixVault

Possible Causes

Possible Causes 
INTERMITTENT DTC
(K21) IAT SIGNAL CIRCUIT SHORTED TO GROUND
(K21) IAT SIGNAL CIRCUIT SHORTED TO (K915) SENSOR GROUND
(K21) IAT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
INTAKE AIR TEMPERATURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .