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SYSTEM ANALYSIS
EMM LED INDICATORS
EMM LED INDICATORS
The EMM LED ind icators provide a quick refer-
ence to the st atus of several outb oard systems.
Checking the LEDs FI RST when diagnosing an
engine problem can save time.
IMPORTANT: LED 1 is t oward th e top of the
outboard (closest to EMM J2 connector).
Key ON
When the EMM is ON (engine not run ning), the
following LEDs should light:
LED 1 – SAC Circuit wo rking – 30 V present on
55 V circuit.
LED 3 – Sensor Circuit s working . FLASHING
LIGHT indicates Code 57 – engine will not start.
LED 4 – Stop Circuit not g rounded–okay to start.
FLASHING LIGHT indicates severe overheat or
no oil – engine in SHUTDOWN mode.
Starting
Starting mo de occu rs fro m t he time the f lywheel
begins to turn until t he o utboard is ru nning for 2
seconds. Du ring s tarting, a ll f our LEDs s hould
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 – inpu t 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 7 – PORT Knock sensor circuit fault
• Code 8 – STBD Knock sensor circuit fault
• Code 12 – TPS circuit fault
• Code 13 – TPS below expected range
• Code 14 – TPS above expected range
• 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 shut down, excessive no oil
condition
1. LED indicators 004197
004198
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