What does fault code AL 3 mean on a Caterpillar EMCP II+ panel?

AL 3 indicates a LOW ENGINE OIL PRESSURE ALARM, per the decal's fault code table.

How do I view logged faults on the EMCP II+ generator set control?

Press the SERVICE MODE REQUEST key to enter Service Mode, then press SELECT; logged faults display for 2 seconds each showing CID, FMI, and total occurrence counts, with the hourmeter reading on the lower display. Use SCROLL UP/DOWN to scroll manually and EXIT to leave.

What does FMI 4 mean in an EMCP II+ diagnostic code?

FMI 4 means short to ground or under voltage.

What are the SP codes on the EMCP II+ display?

SP 1 through SP 4 are spare fault inputs 1–4, associated with four spare inputs that can be either alarm or shutdown faults.

What relays are shown by the relay status indicators?

K1 Electronic Governor Control Relay, K2 Gen Set Fault Relay, K3 Crank Terminate Relay, K4 Starter Motor Relay, K5 Run Relay, K6 Air Shutoff Relay (a Fuel relay label is partially cut off).

Home/ Registry/ Ford/ LTD Crown Victoria/ 1983-1991/ “351”/ Photo supermotors.net/registry/media/999669

Caterpillar EMCP II+ Diagnostic Codes Decal - AL Fault Codes & Service Mode

EMCP II generator control panel decal listing system diagnostic and fault codes with conditions and starting procedure

‹ ›

Equipment data plate listing EMCP II system diagnostic codes, alarm/fault code conditions, service-mode keypad functions, and starting procedure.

AI caption October 2013 · Photo 3300 of 4215

This is a photograph of an instruction decal mounted on a Caterpillar EMCP II+ generator set control panel (Generator Set Control+, GSC+), not an automotive fuse or wiring document. The decal explains the EMCP II+ system diagnostic code structure: each code consists of a Component ID (CID), Failure Mode Identifier (FMI), and occurrence count. It lists FMI failure modes (2 = out of range/data erratic, 3 = short to +bat/over voltage/open circuit, 4 = short to ground/under voltage, 7 = mechanical system, 9 = abnormal update, 12 = failed component) and a partially clipped CID component list. Step-by-step instructions are given for viewing logged faults using the Service Mode and the SELECT, SCROLL UP/DOWN, SCROLL RIGHT, and EXIT keys. A complete fault code table maps AL 1 through AL 15 and SP 1–SP 4 to conditions such as high/low coolant temperature alarms, low oil pressure, generator over/under voltage and frequency faults, reverse power, over current, and GSC+ configuration error. The right side documents alternate keypad functions in Service Mode, relay status indicators K1–K6 (electronic governor, genset fault, crank terminate, starter motor, run, air shutoff relays), and an 11-step engine starting procedure. Part/decal numbers 130-9715, 103-1837, and 144-0861 are visible.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What does fault code AL 3 mean on a Caterpillar EMCP II+ panel?: AL 3 indicates a LOW ENGINE OIL PRESSURE ALARM, per the decal's fault code table.
How do I view logged faults on the EMCP II+ generator set control?: Press the SERVICE MODE REQUEST key to enter Service Mode, then press SELECT; logged faults display for 2 seconds each showing CID, FMI, and total occurrence counts, with the hourmeter reading on the lower display. Use SCROLL UP/DOWN to scroll manually and EXIT to leave.
What does FMI 4 mean in an EMCP II+ diagnostic code?: FMI 4 means short to ground or under voltage.
What are the SP codes on the EMCP II+ display?: SP 1 through SP 4 are spare fault inputs 1–4, associated with four spare inputs that can be either alarm or shutdown faults.
What relays are shown by the relay status indicators?: K1 Electronic Governor Control Relay, K2 Gen Set Fault Relay, K3 Crank Terminate Relay, K4 Starter Motor Relay, K5 Run Relay, K6 Air Shutoff Relay (a Fuel relay label is partially cut off).