Possible Causes
| Possible Causes |
|---|
| (K29) APP SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE |
| (K29) APP SIGNAL 2 SHORTED TO THE (F856) 5-VOLT SUPPLY CIRCUIT |
| (K29) APP SIGNAL 2 SHORTED TO THE (F855) 5-VOLT SUPPLY CIRCUIT |
| (K400) APP RETURN 2 CIRCUIT OPEN |
| APP SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.