This diagnostic condition is typically either a short to ground or an open wire. 44.3.1 Check for Short to Ground Check for short to ground…
Author: sam
This diagnostic condition is typically an open circuit. 44.2.1 Open Circuit Check Check as follows: 1. Disconnect the Idle Validation Switch. 2. Turn the ignition…
This fault is a typically incorrect wiring of the Idle Validation Switch (IVS). 44.1.1 Check Idle Validation Switch Wiring Check as follows: 1. Connect the…
43.1 SPN 527/FMI 9 This fault is typically the J1939 CCVS message from Source #1, #2, or #3 is missing. 43.1.1 Missing J1939 CCVS Message…
42.1 SPN 523/FMI 9 This fault is typically the J1939 ETC2 message is missing. 42.1.1 Missing J1939 ETC2 Message Check Check as follows: 1. Check…
41.1 SPN 523/FMI 19 This fault is typically the transmission current gear signal is erratic. 41.1.1 Erratic Transmission Current Gear Signal Check Check as follows:…
This diagnosis is typically EGR temperature drift (high box). 40.4.1 EGR Temperature Check Check as follows: 1. Visually inspect the EGR cooler for physical damage…
This diagnosis is typically EGR temperature is too high. 40.3.1 EGR Temperature Check Check as follows: 1. Visually inspect the EGR cooler for physical damage,…
This diagnosis is typically EGR temperature circuit failed low. 40.2.1 Short Circuit Check Check for a short circuit as follows: 1. Disconnect the EGR Temperature…
This diagnosis is typically EGR temperature circuit failed high. 40.1.1 Open Circuit/Short to Power Check Check as follows: 1. Turn the ignition the ON (key…