Series 60 DDEC V Troubleshooting – Section 61.2 Troubleshooting Flash Code 62, SID 26, 40, 53, 54, 55, 56, 257, 258, 259/FMI 3, 4

Section 61.2
Troubleshooting Flash Code 62, SID 26, 40, 53, 54, 55, 56, 257, 258, 259/FMI 3, 4

This diagnosis is typically an open circuit or a short to battery (+) or an open cicuit shorted to ground. The following procedure will troubleshoot Flash Code 62.‪

Section 61.2.1
Code Check

Perform the following steps to check for codes.‪

1. Turn vehicle ignition ON.
2. Plug in the diagnostic tool. Record codes logged then clear the codes.
3. Start and run the engine for one minute.
   1. If the code becomes active, refer to "61.2.2 Auxiliary Output Cavity Determination" .
   2. If the code does not become active, go to step 4 .
4. Perform a road test.
   1. If the code returns, refer to "61.2.2 Auxiliary Output Cavity Determination" .
   2. If the code does not display again, return the vehicle to service, or refer to "20.1.1 Diagnosis by Symptom" .

Section 61.2.2
Auxiliary Output Cavity Determination

Determine which auxiliary output cavity is associated with the code or codes being logged. The SAE code descriptions of Flash Code 62 and the DDC wire numbers are listed in Table "Auxiliary Output Cavities" . Continue troubleshooting. Refer to "61.2.3 Electrical Check" .‪

Output‪	SAE Code Description ‪	VIH and EH Cavity ‪
Auxiliary Output #1‪	SID 26/FMI 3 or 4‪	V-04‪
Auxiliary Output #2‪	SID 40/FMI 3 or4‪	V-05‪
Auxiliary Output #5‪	SID 53/FMI 3 or 4‪	V-06‪
Auxiliary Output #6‪	SID 54/FMI 3 or 4‪	V-07‪
Auxiliary Output #7‪	SID 55/FMI 3 or 4‪	V-40‪
Auxiliary Output #8‪	SID 56/FMI 3 or 4‪	V-53‪
Auxiliary Output #9‪	SID 257/FMI 3 or 4‪	V-54‪
Auxiliary Output #10‪	SID 258/FMI 3 or 4‪	V-55‪
Auxiliary Output #11‪	SID 259/FMI 3 or 4‪	E-13‪

Section 61.2.3
Electrical Check

Perform the following steps to check connectors, dash light or vehicle power-down relay, or item being driven.‪

1. Check the connectors of the output wire associated with the code logged at the vehicle harness connector or engine sensor harness connector.
2. Check the connectors of the output wire associated with the code logged at the item being driven.
   1. If the connectors are not good, repair or replace the terminals. Refer to "61.2.4.1 Verify Repairs" .
   2. If the connectors are good and the items being driven (e.g. relay, light) are not in good condition, repair or replace the device. (Contact OEM for test procedure.) Refer to "61.2.4.1 Verify Repairs" .
   3. If the connectors are good and the items being driven (e.g. relay, light, are in good condition, refer to "61.2.4 Measure Resistance" .

Section 61.2.4
Measure Resistance

Perform the following steps to measure the resistance.‪

1. Turn ignition OFF.
2. Connect the Engine Sensor Harness or Vehicle Interface Harness (connector with output fault).
3. Disconnect the output wire associated with the code logged at the component.
4. Measure the resistance between the removed connector and the ECM/ECU case.
   1. If the reading is less than 100K Ω, contact Detroit Diesel Customer Support Center (313–592–5800).
   2. If the reading is greater than 100K Ω, this wire is shorted to the battery or open. Repair or replace this wire. Refer to "61.2.4.1 Verify Repairs" .

Section 61.2.4.1
Verify Repairs

Perform the following steps to verify repairs.‪

1. Reconnect all connectors.
2. Plug diagnostic tool into the connector.
3. Clear all codes.
4. Start and run the engine.
   1. If the output code returns, refer to "61.2.1 Code Check" .
   2. If the output code does not return, troubleshooting is complete.