Cummins ISB CM850 (2003-06) Fault Code: 528 PID: 93 SPN: 93 FMI: 2 Auxiliary Alternate Torque Validation Switch – Data Erratic, Intermittent, or Incorrect. An error has been detected in the alternate torque switch circuit.
Cummins ISB CM850 (2003-06) Fault Code: 528 PID: 93 SPN: 93 FMI: 2 Auxiliary Alternate Torque Validation Switch – Data Erratic, Intermittent, or Incorrect. An error has been detected in the alternate torque switch circuit.
The switch can be monitored for proper operation in INSITE? electronic service tool. If the switch is changing state correctly on the service tool, then the problem does not lie in the switch circuit.
The three position-switch has three states:
1)Position 1 – open
2)Position 2 – closed
3)Position 3 – 1500 ohm resistance
The two position-switch has two states:
1)Position 1 – open
2)Position 2 – closed
Possible repairs:
1)Replace the alternate torque switch.
2)Repair or replace the OEM harness.
3)The removal and reinstallation of the connector may correct the fault.
![MAN MANTIS v666 EPC [09.2021] Spare Parts Catalog](https://www.ecuforcetruck.com/wp-content/uploads/2022/01/MANTIS-V666-300x300.png)
Related products
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Allison 1000 & 2000 Gen 5 Fault Code:P2761 TCC PCS Control Circuit Open
1000 & 2000 Gen 5 -
