PTO and Fire Pump Control J1587 Fault Codes
| MID | SID | FMI | DESCRIPTION | ACTION |
|---|---|---|---|---|
| 164 | 25 | 7 | End of Frame Air (PTO and fire pump control)–unexpected air pressure feedback | Solenoid is not activated, but CHM senses that the pressure switch is in an unexpected state. For example, a normally closed solenoid is off, but air pressure is detected. Check the following: • Air system • Pressure feedback circuit including the ground. • Solenoid–pressure switch may be stuck. |
| 164 | 26 | 7 | End of Frame (PTO and fire pump control)–no air pressure feedback | Chassis Module engages solenoid, but the pressure switch does not change status indicating that the solenoid supplied, or exhausted, air downstream. Check the following: • Air system • Pressure feedback circuit including the ground. • Solenoid–pressure switch may be stuck. |
PTO and Fire Pump Control J1939 Fault Codes
| SA | SPN | FMI | DESCRIPTION | ACTION |
|---|---|---|---|---|
| 33 | 6954 | 7 | End of Frame (PTO and fire pump control)–no air pressure feedback | Solenoid is not activated, but CHM senses that the pressure switch is in an unexpected state. For example, a normally closed solenoid is off, but air pressure is detected. Check the following: • Air system • Pressure feedback circuit including the ground. • Solenoid–pressure switch may be stuck. |
| 33 | 6955 | 7 | End of Frame (PTO and fire pump control)–unexpected air pressure feed- back | Chassis Module engages solenoid, but the pressure switch does not change status indicating that the solenoid supplied, or exhausted, air downstream. Check the following: •Air system •Pressure feedback circuit including the ground. •Solenoid–pressure switch may be stuck. |
