FixVault

Possible Causes

Possible Causes 
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(K23) APP SIGNAL 1 SHORTED TO THE (K855) 5-VOLT SUPPLY CIRCUIT
(K23) APP SIGNAL 1 SHORTED TO THE (K857) 5-VOLT SUPPLY CIRCUIT
(K167) APP SENSOR GROUND 1 CIRCUIT OPEN
APP SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .