Series 60 – SPN 641/FMI 8 – SMART REMOTE ACTUATOR 5 (VGT) ABNORMAL OPERATION

This code typically means the Smart Remote Actuator 5 has an internal test running.
57.2.1
Actuator Check
Check as follows:
1. Disconnect the turbo actuator.
2. Disconnect the MCM 120–pin connector.
3. Measure the resistance between pin 3 of the turbo actuator harness connector and pin 74
of the MCM 120–pin connector.
[a] If the resistance is less than 3 Ω, go to step 4.
[b] If the resistance is greater than 3 Ω, repair the open between pin 3 of the turbo actuator
harness connector and pin 74 of the MCM 120–pin connector. Refer to section
57.2.1.1.
4. Measure the resistance between pin 4 of the turbo actuator harness connector and pin 75
of the MCM 120–pin connector.
[a] If the resistance is less than 3 Ω, replace the turbo actuator. Refer to section 57.2.1.1.
[b] If the resistance is greater than 3 Ω, repair the open between pin 4 of the turbo actuator
harness connector and pin 75 of the MCM 120–pin connector. Refer to section
57.2.1.1.

57.2.1.1
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.
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. If assistance is required, call the Detroit Diesel
Customer Support Center at 313–592–5800.

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