DD15 SPN 3510/FMI 4 Troubleshooting

SPN 3510/FMI 4

The typical diagnosis for this fault is voltage low.‪

Check as follows:‪

1. Disconnect the Accelerator Pedal (AP) connector.
2. Disconnect the #1 connector of the CPC.
3. Measure the resistance between pin 1 and pin 3 of the AP connector.
   1. If the resistance is less than 5 Ω, repair the short between wires 8 and 4 of the CPC #1 connector. Refer to “112.3.1 Verify Repairs” .
   2. If the resistance is greater than 5 Ω, go to the next step.
4. Measure the resistance between pin 2 and 3 of the AP connector.
   1. If the resistance is less than 5 Ω, repair the short between wires 7 and 14 of the CPC #! connector. Refer to “112.3.1 Verify Repairs” .
   2. If the resistance is greater than 5 Ω, go to the next step.
5. Measure the resistance between pin 1 of the AP connector and ground.
   1. If the resistance is less than 5 Ω, repair the short circuit between pin 1 of the AP connector and ground. Refer to “112.3.1 Verify Repairs” .
   2. If the resistance is greater than 5 Ω, go to the next step.
6. Measure the resistance between pin 2 of the AP connector and ground.
   1. If the resistance is less than 5 Ω, repair the short circuit between pin 2 of the AP connector and ground. Refer to “112.3.1 Verify Repairs” .
   2. If the resistance is greater than 5 Ω, replace the Accelerator Pedal. Refer to “112.3.1 Verify Repairs” .

Verify Repairs

Verify repairs as follows:‪

1. Turn ignition OFF.
2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
3. Clear codes with DDDL 7.0 or latest version.
   

   ENGINE EXHAUST ‪
   To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

4. Start and bring engine up to operating temperature (over 140°F/60°C).
5. Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes.