Shop
Account
Cart $0.00
0
0
Subtotal: $0.00
No products in the cart.

Cummins ISC CM2150 (2007-09) Fault Code: 442 PID: 168 SPN: 168 FMI: 0 Battery 1 Voltage – Data Valid but Above Normal Operational Range – Moderately Severe Level. ECM supply voltage is above the maximum system voltage level.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.

This fault code is logged when the ECM battery supply voltage exceed 36-VDC. Causes of this fault code include:

1)Faulty alternator or regulator that is overcharging the system
2)Batteries connected in series instead of parallel

Possible repairs:

1)Install the battery system correctly.
2)Repair or replace the alternator, regulator, and/or the OEM wiring to the alternator.

Categories , , Tags , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Facebook Twitter Youtube
Wiring Diagrams
Component Locators

Related products