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If you own a Honda Aquatrax PWC, chances are that you seen an FI(fault indicator/check engine) light appear on your dashboard. Due to the complexity of modern Jet Skis, that fault code could mean several things.
For instance; Code 25 is infamous in the Honda Aquatrax. The actual code tells you that the knock sensor is faulty, however, that is not always the case and may require further troubleshooting to reveal the root problem.
For those who want to learn how to read and understand the fault codes, please read on.
We have found that the absolute best way to pull fault codes from a Honda Aquatrax while the jet ski is in the water.
Alarm*** goes off !
Now your jet ski goes into FI fault. This is like the check engine light on your car, nothing more.
This next part might take two hands.
With the jet ski in FI fault and "RUNNING", press and hold mode and set for 10 seconds, until the alarm silences.
Release... the Mode and Set buttons and Repeat holding mode and set for 10 seconds longer.
The FI light will blink a series of long and short flashes. Count the long and the short flashes separately.
The long flash is equivalent of 10 counts per flash and the short is equivalent 1 count per flash.
For instance; 2 long flashes and 5 short flashes equal code 25
Again; 4 long flashes and 4 short equals code 44.
Now that you have your fault code for the Honda Aquatrax you can check it against the Failure Code List.
Honda Aquatrax ECM/PGM-FI Fault Codes
| Number Of PGM-FI Blinks | Causes of Fault | Symptoms |
|---|---|---|
| No Blinks | • Loose or poor connection of the MAP sensor vacuum hose • Faulty MAP sensor | • Engine operates normally |
| No Blinks | • Open circuit at the power input and ground wires of the ECM • Blown sub-fuse D (7.5 A) • Faulty main relay • Open circuit in the main relay related circuits • Faulty engine stop switch • Open circuit in the engine stop switch related circuits • Faulty ECM • Blown main fuse (30 A) | • Engine does not start |
| Continuous Blinking | • Short circuit in the MIL wire • Faulty ECM | • Engine operates normally |
| Stays lit | • Short circuit in the service check connector wire | • Engine operates normally |
1 |
• Loose or poorly connected MAP sensor connector • Open or short circuit in the MAP sensor wire • Faulty MAP sensor | • Engine operates normally |
2 |
• Loose or poor connection of the MAP sensor vacuum hose • Faulty MAP sensor | • Engine operates normally |
7 |
• Loose or poorly connected ECT sensor connector • Open or short circuit in the ECT sensor wire • Faulty ECT sensor | • Hard to start at low temperatures (ECM controls using preset value; Cooling water temperature: 90°C/194°F) • Engine operates below 3,000 rpm |
8 |
• Loose or poorly connected TP sensor connector • Open or short circuit in the TP sensor wire • Faulty TP sensor | • Poor engine response when operating the throttle quickly (ECM controls using preset value; Throttle opening: 0°) |
9 |
• Loose or poorly connected IAT sensor connector • Open or short circuit in the IAT sensor wire • Faulty IAT sensor | • Engine operates below 3,000 rpm (ECM controls using preset value; Intake air temperature: 25°C/77°F) |
12 |
• Loose or poorly connected No. 1 injector connector • Open or short circuit in the No. 1 injector wire • Faulty No. 1 injector | • Engine operates below 3,000 rpm |
13 |
• Loose or poorly connected No. 2 injector connector • Open or short circuit in the No. 2 injector wire • Faulty No. 2 injector | • Engine operates below 3,000 rpm |
14 |
• Loose or poorly connected No. 3 injector connector • Open or short circuit in the No. 3 injector wire • Faulty No. 3 injector | • Engine operates below 3,000 rpm |
15 |
• Loose or poorly connected No. 4 injector connector • Open or short circuit in the No. 4 injector wire • Faulty No. 4 injector | • Engine operates below 3,000 rpm |
18 |
• Loose or poorly connected cam pulse generator connector • Open or short circuit in the cam pulse generator wire • Faulty cam pulse generator | • Engine does not start |
19 |
• Loose or poorly connected ignition pulse generator connector • Open or short circuit in the ignition pulse generator wire • Faulty ignition pulse generator | • Engine does not start |
25 |
• Loose or poorly connected knock sensor connector • Open or short circuit in the knock sensor wire • Faulty knock sensor | • Engine operates below 3,000 rpm |
29 |
• Loose or poorly connected IAC valve connector • Open or short circuit in the IAC valve wire • Faulty IAC valve | • Engine stalls, hard to start, rough idling |
33 |
• Faulty E2-PROM in the ECM | • Engine operates normally • Does not hold the self-diagnostic data |
42 |
• Loose or poorly connected TCP sensor connector • Open or short circuit in the TCP sensor wire • Faulty TCP sensor | • Engine operates below 3,000 rpm |
43 |
• Loose or poor connection of the TCP sensor pressure hose • Faulty TCP sensor | • Engine operates below 3,000 rpm |
44 |
• Loose or poorly connected engine oil temperature sensor connector • Open or short circuit in the engine oil temperature sensor wire • Faulty engine oil temperature sensor | • Hard to start at low temperatures (ECM controls using preset value; Engine oil temperature: 90°C/194°F) • Engine operates below 3,000 rpm |
45 |
• Loose or poorly connected wastegate control solenoid valve connector • Open or short circuit in the wastegate control solenoid valve wire • Faulty wastegate control solenoid valve • Loose or poor connection of the wastegate control solenoid valve hose • Clogged wastegate actuator pressure hose • Faulty wastegate actuator • Faulty TCP sensor | • Engine operates below 3,000 rpm |
46 |
• Faulty cooling system • Loose or poorly connected MST switch connector • Open or short circuit in the MST switch wire • Faulty MST switch | • Engine does not start |
47 |
• Faulty cooling system • Loose or poorly connected ECT sensor connector • Open or short circuit in the ECT sensor wire • Faulty ECT sensor | • Engine operates below 3,000 rpm when the coolant temperature is 85 – 95°C (185 – 203°F) • Engine does not start when the coolant temperature is above 95°C (203°F) |
| END | OF | FAULT CODES |