This diagnosis is typically injector #1, 2, or 3 needle control valve circuit is shorted to ground. 95.2.1 Short to Ground Check Check as follows:…

95.1 SPN 2797/FMI 3 This diagnosis is typically injector #1, 2, or 3 needle control valve circuit has a short to battery/power. 95.1.1 Short to…

This diagnosis is typically a CAN3 communication error. 94.1.1 CAN3 Check Check as follows: 1. Check for multiple codes. [a] If codes other than SPN…

This diagnosis is typically the EGR valve is in an incorrect position. 93.4.1 EGR Valve Position Check Check as follows: 1. Turn the ignition ON…

This diagnostic condition is typically an open circuit fault. 93.3.1 Open Circuit Check Check as follows: 1. Check for multiple codes. [a] If 2791/5, 27/4,…

93.2 SPN 2791/FMI 4 This diagnosis is typically short to ground. 93.2.1 Check for Short Check as follows: 1. Disconnect EGR valve connector. 2. Disconnect…

93.1 SPN 2791/FMI 3 This diagnostic condition is typically a short to power fault. 93.1.1 Short Circuit Check Check as follows: 1. Disconnect the EGR…

92.2 SPN 2659/FMI 1 The code is typically an EGR flow target error (low flow). 92.2.1 EGR Low Flow Check Check as follows: 1. Inspect…

92.1 SPN 2659/FMI 0 The code is typically an EGR flow target error (high flow). 92.1.1 EGR High Flow Check Check as follows: 1. Inspect…

This condition is typically temperature too low from the turbo outlet. 91.4.1 Turbocharger Check Check as follows: 1. Disconnect the TCO Sensor. 2. Measure the…