EMM Led Indicator
The EMM LED indicators provide a quick reference to the status of several outboard systems. Checking the LEDs FIRST when diagnosing an engine problem can save time.
For detailed code information, refer to the EMM Service Code Chart at the back of this manual.
IMPORTANT: LED 1 is toward the rear of the outboard (Closest to EMM J2 connector).
005239
- LED indicators
Key ON
When the EMM is ON (engine not running), the following LEDs should light:
LED 1 – SAC Circuit working – 30 V present on 55 V circuit.
LED 3 – Sensor Circuits working. FLASHING LIGHT indicates Code 57 – engine will not start.
LED 4 – Stop Circuit not grounded–okay to start. FLASHING LIGHT indicates severe overheat or no oil – engine in SHUTDOWN mode.
Starting
Starting mode occurs from the time the flywheel begins to turn until the outboard is running for 2 seconds. During starting, all four LEDs should light and then go off in sequence.
LED 1– CHARGING OKAY – Stator signal 30 V or higher. For NO LIGHT, check for:
- Code 77– SAC circuit fault
LED 2 – CRANK POSITION OKAY – input from CPS, EMM powered ON. For NO LIGHT, check for:
• Code 16 – CPS, intermittent loss of sync
LED 3 – SENSORS OKAY (5 V). For NO LIGHT, check for:
• Code 12 – TPS circuit fault
• Code 13 – TPS below expected range
• Code 14 – TPS above expected range
• Code 19 – In Gear (tiller models)
• Code 23 – EMM temp. sensor circuit fault
• Code 24 – EMM temp. below expected range
• Code 37 – Water in fuel
• Code 41 – PORT temp. sensor circuit fault
• Code 42 – PORT temp. below expected range
• Code 47 – AT sensor circuit fault
• Code 48 – AT sensor below expected range
• Code 49 – AT sensor above expected range
• Code 58 – Operating temp. not reached, Port
• Code 59 – Operating temp. not reached, Stbd
• Code 67 – STBD temp. sensor circuit fault
• Code 68 – STBD temp. below expected range
• Code 71 – oil pressure circuit fault detected
• Code 72 – oil pressure below expected range
• Code 73 – oil pressure above expected range
• Code 74 – water pressure circuit fault detected
• Code 75 – water pressure below range
• Code 76 – water pressure above range
• Code 78 – sensor supply voltage fault
• Code 79 – starter solenoid circuit open
• Code 87 – Exhaust pressure circuit fault
• Code 88 – Exhaust pressure low
• Code 89 – Exhaust pressure high
For FLASHING LIGHT, check for Code 57.
LED 4 – LANYARD/STOP OKAY. For NO LIGHT, check for:
• Grounded stop circuit.
For FLASHING LIGHT, check for:
• Code 29 – EMM temp. OVER range (flashing)
• Code 31 – Engine temp. OVER range (flashing)
• Code 33 – Engine shutdown, excessive no oil condition
Running
When the outboard is running, all of the LEDs should be off. If a light is on, check for:
LED 1 – CHARGING FAULT:
• Code 17 – System voltage (55 V) below range
• Code 18 – System voltage (55 V) above range
• Code 26 – Low battery (12 V) voltage
• Code 27 – High battery (12 V) voltage
• Code 77– SAC circuit fault
LED 2 – INJECTOR/IGNITION FAULT:
• Code 51 – No. 1 injector circuit open
• Code 52 – No. 2 injector circuit open
• Code 53 – No. 3 injector circuit open
• Code 54 – No. 4 injector circuit open
• Code 55 – No. 5 injector circuit open
• Code 56 – No. 6 injector circuit open
• Code 61 – No. 1 injector circuit short
• Code 62 – No. 2 injector circuit short
• Code 63 – No. 3 injector circuit short
• Code 64 – No. 4 injector circuit short
• Code 65 – No. 5 injector circuit short
• Code 66 – No. 6 injector circuit short
• Code 81 – No. 1 ignition primary circuit open
• Code 82 – No. 2 ignition primary circuit open
• Code 83 – No. 3 ignition primary circuit open
• Code 84 – No. 4 ignition primary circuit open
• Code 85 – No. 5 ignition primary circuit open
• Code 86 – No. 6 ignition primary circuit open
• Code 91 – Fuel pump circuit open
• Code 92 – Exhaust valve circuit open
• Code 94 – Fuel pump circuit short
• Code 101 – No. 1 ignition timing circuit shorted
• Code 102 – No. 2 ignition timing circuit shorted
• Code 103 – No. 3 ignition timing circuit shorted
• Code 104 – No. 4 ignition timing circuit shorted
• Code 105 – No. 5 ignition timing circuit shorted
• Code 106 – No. 6 ignition timing circuit shorted
LED 3 – Sensor circuits (5 V), SENSOR FAULT.
For LIGHT ON, check for possible fault codes:
• Code 12 – TPS circuit fault
• Code 13 – TPS below expected range
• Code 14 – TPS above expected range
• Code 16 – CPS, intermittent loss of sync
• Code 23 – EMM temp. sensor circuit fault
• Code 24 – EMM temp. below expected range
• Code 37 – Water in fuel
• Code 41 – PORT temp. sensor circuit fault
• Code 42 – PORT temp. below expected range
• Code 47 – AT sensor circuit fault
• Code 48 – AT sensor below expected range
• Code 49 – AT sensor above expected range
• Code 57 – high RPM with low TPS setting
• Code 58 – PORT operating temp. not reached
• Code 59 – STBD operating temp. not reached
• Code 67 – STBD temp. sensor circuit fault
• Code 68 – STBD temp. below expected range
• Code 71 – oil pressure circuit fault detected
• Code 72 – oil pressure below expected range
• Code 73 – oil pressure above expected range
• Code 74 – water pressure circuit fault detected
• Code 75 – water pressure below range
• Code 76 – water pressure above range
• Code 78 – sensor supply voltage fault
• Code 87 – exhaust pressure circuit fault
• Code 88 – exhaust pressure below range
• Code 89 – exhaust pressure above range
• Code 97 – Intermittent switched B+ detected
LED 4 – Engine overheat, EMM temperature or sensor, oil injection pump or sensor, NO OIL / OVERHEAT. For LIGHT ON, check for possible fault codes:
• Code 25 – EMM temp. above expected range
• Code 29 – EMM temp. OVER range (flashing)
• Code 31 – engine temp. OVER range (flashing)
• Code 33 – excessive NO OIL faults
• Code 34 – oil injection pump circuit open
• Code 38 – oil pressure feedback not detected
• Code 40 – engine overheat, low rpm
• Code 43 – PORT temp. above expected range
• Code 69 – STBD temp. above expected range
• Code 70 – engine overheat, low rpm
