Maintenance required light
Crayons taste like purple...
Joined: Jul 2005
Posts: 3,324
Likes: 0
From: Orlando by way of Altoona, PA!!!
Rep Power: 287 
yeah i did mean the maintenance light
sorry bout posting a new thread thought I hit the reply button in the sticky about the maintenance light
even if its doing the 1,000 mile over blink? (like for 10-20 seconds?)
even if its doing the 1,000 mile over blink? (like for 10-20 seconds?)
Registered!!
iTrader: (13)
Joined: Apr 2003
Posts: 17,176
Likes: 3
From: Miami (Pembroke Pines), Florida
Rep Power: 452
Originally Posted by Shroomster
sorry bout posting a new thread thought I hit the reply button in the sticky about the maintenance light
even if its doing the 1,000 mile over blink? (like for 10-20 seconds?)
even if its doing the 1,000 mile over blink? (like for 10-20 seconds?)
Registered!!
iTrader: (13)
Joined: Apr 2003
Posts: 17,176
Likes: 3
From: Miami (Pembroke Pines), Florida
Rep Power: 452 Just a reminder to everyone, the check engine light is a picture of a engine while the maintenence required light says "maint reqd". too many people are getting confused between the 2.
Registered!!
Joined: Jun 2006
Posts: 34
Likes: 0
Rep Power: 0 yea, i thought it was my oil change light at first, so i had my oil changed which needed to be done anyway at 9500 miles, but thanks for the info on how to turn it off... it was starting to get annoying very quickly!
Registered!!
iTrader: (5)
Joined: Dec 2001
Posts: 2,186
Likes: 0
From: Northern Virginia
Rep Power: 317 so what happens if it does not turn off after trying everything in the book? I am referring to my MAINT REQ'D light. I start up, it blinks ONCE, then stays steady-burning. i've held the odometer down for up to a minute while turning my car on in the accesory position, then started and held it for another minute... nothing. please help 
Originally Posted by Mex
so what happens if it does not turn off after trying everything in the book? I am referring to my MAINT REQ'D light. I start up, it blinks ONCE, then stays steady-burning. i've held the odometer down for up to a minute while turning my car on in the accesory position, then started and held it for another minute... nothing. please help
Thread Starter
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 811 well if it were me, and I have the old style of cluster 01-02 lx/ex or 01-05 dx, i would open it up and break off the led inside. that light is completely useless. maybe you can sneak in a piece of electrical tape from the back to cover it.
Registered!!
Joined: Jan 2006
Posts: 112
Likes: 0
From: Jacksonville
Rep Power: 0 
awsome thread gearbox thanx
and blkdrgn thankx man ive been needin these
The engine light is like morse code or something. If u can read it, u could know what exactly its telling you. Mine started blinking 2 days ago and it blinked 10 times meaning something to do with my stock intake.
# Detection Item Probable Cause
1 Primary O2 Sensor Open or Short in O2 sensor circuit, bad Primary O2 sensor
3 Manifold Absolute Pressure Sensor Open or short in MAP sensor circuit, bad MAPS
4 Crankshaft Position Sensor Failed sensor or timing belt slipped, bad CPS
5 Manifold Absolute Pressure Sensor Reading too low or too high, bad MAP
6 Engine Coolant Temp Circuit Reading too low, high, short or open, bad ECT
7 Throttle Position Circuit Reading too high, low, short or open, bad TPS
8 Crankshaft Position Sensor/
Top Dead Center Sensor/
Cylinder Position Sensor/ CKP/TDC/CYP senso circuitdisconnected,open or short. Bad TDC senor.
9 Cylinder Position Sensor Open or short in CYP circuit, bad CYP sensor
10 Intake Air Temperature Sensor Short or open in AIT circuit, bad AITS
13 Barometric Pressure Sensor Circuit Bad ECM (Barometric sensor)
14 Idle Control System Malfunction Bad IAC valve, bad fast idle thermo valve, Throttle body
17 Vehicle Speed Sensor Circuit Short or open in VSS circuit, bad VSS
20 Electrical Load Detector Circuit Short or open in circuit, bad ELD
22 VTEC System Malfunction Short or open in VTEC circuit, bad VTEC solenoid valve, Bad VTEC pressure switch
23 Knock Sensor Circuit Short or open in Knock Sensor circuit, bad Knock Sensor
30 A/T FI Signal A high/low input Bad AFSA line, TCM
31 A/T FI Signal B high/low input Bad AFSB line, TCM
41 Primary Heated O2 Sensor Heater Open or short in Primary O2 sensor heater circuit
45 System too lean/rich Fuel supply system, Primary O2 sensor, MAP sensor, contaminated fuel, valve clearance, exhaust leakage
54 Crankshaft Speed Fluctuation Sensor Open or short in CKF circuit, bad CKF sensor
61 Primary Heated O2 Sensor Slow response, bad O2 sensor, exhaust leak
63 Secondary Heated O2 Sensor Slow response, bad O2 sensor, exhaust leak
65 Secondary Heated O2 Sensor Circuit Open or short in secondary O2 sensor circuit
67 Catalyst System Efficiency System below threshold, bad catalytic converter
70 Automatic Transaxle A/T transmission, A/T FI data line, TCM, ECM
71 Random Misfire (Cyl 1) Ignition system, fuel supply system, MAP sensor, IAC valve, contaminated fuel, lack of fuel, fuel injector, fuel injector circuit, low compression, valve clearance
72 Random Misfire (Cyl 2)
73 Random Misfire (Cyl 3)
74 Random Misfire (Cyl 4)
86 Engine Coolant Temp Circuit Bad ECT sensor, bad cooling system
90 Evap Emission Control System Leak Fuel cap loose, poor vacuum connection, fuel tank, fuel tank pressure sensor, EVAP bypass solenoid valve, EVAP tow-way valve, EVAP control canister vent shut valve, EVAP canister, EVAP purge control solenoid valve
91 Fuel Tank Pressure Sensor Circuit Open or short in FTP circuit, Bad fuel tank pressure sensor
# Detection Item Probable Cause
1 Primary O2 Sensor Open or Short in O2 sensor circuit, bad Primary O2 sensor
3 Manifold Absolute Pressure Sensor Open or short in MAP sensor circuit, bad MAPS
4 Crankshaft Position Sensor Failed sensor or timing belt slipped, bad CPS
5 Manifold Absolute Pressure Sensor Reading too low or too high, bad MAP
6 Engine Coolant Temp Circuit Reading too low, high, short or open, bad ECT
7 Throttle Position Circuit Reading too high, low, short or open, bad TPS
8 Crankshaft Position Sensor/
Top Dead Center Sensor/
Cylinder Position Sensor/ CKP/TDC/CYP senso circuitdisconnected,open or short. Bad TDC senor.
9 Cylinder Position Sensor Open or short in CYP circuit, bad CYP sensor
10 Intake Air Temperature Sensor Short or open in AIT circuit, bad AITS
13 Barometric Pressure Sensor Circuit Bad ECM (Barometric sensor)
14 Idle Control System Malfunction Bad IAC valve, bad fast idle thermo valve, Throttle body
17 Vehicle Speed Sensor Circuit Short or open in VSS circuit, bad VSS
20 Electrical Load Detector Circuit Short or open in circuit, bad ELD
22 VTEC System Malfunction Short or open in VTEC circuit, bad VTEC solenoid valve, Bad VTEC pressure switch
23 Knock Sensor Circuit Short or open in Knock Sensor circuit, bad Knock Sensor
30 A/T FI Signal A high/low input Bad AFSA line, TCM
31 A/T FI Signal B high/low input Bad AFSB line, TCM
41 Primary Heated O2 Sensor Heater Open or short in Primary O2 sensor heater circuit
45 System too lean/rich Fuel supply system, Primary O2 sensor, MAP sensor, contaminated fuel, valve clearance, exhaust leakage
54 Crankshaft Speed Fluctuation Sensor Open or short in CKF circuit, bad CKF sensor
61 Primary Heated O2 Sensor Slow response, bad O2 sensor, exhaust leak
63 Secondary Heated O2 Sensor Slow response, bad O2 sensor, exhaust leak
65 Secondary Heated O2 Sensor Circuit Open or short in secondary O2 sensor circuit
67 Catalyst System Efficiency System below threshold, bad catalytic converter
70 Automatic Transaxle A/T transmission, A/T FI data line, TCM, ECM
71 Random Misfire (Cyl 1) Ignition system, fuel supply system, MAP sensor, IAC valve, contaminated fuel, lack of fuel, fuel injector, fuel injector circuit, low compression, valve clearance
72 Random Misfire (Cyl 2)
73 Random Misfire (Cyl 3)
74 Random Misfire (Cyl 4)
86 Engine Coolant Temp Circuit Bad ECT sensor, bad cooling system
90 Evap Emission Control System Leak Fuel cap loose, poor vacuum connection, fuel tank, fuel tank pressure sensor, EVAP bypass solenoid valve, EVAP tow-way valve, EVAP control canister vent shut valve, EVAP canister, EVAP purge control solenoid valve
91 Fuel Tank Pressure Sensor Circuit Open or short in FTP circuit, Bad fuel tank pressure sensor
The only Wyoming Redneck on here
Joined: Jul 2006
Posts: 501
Likes: 0
From: Wyoming
Rep Power: 246 ^^^^lol, way to be. i figured this out a long time ago, now whenever a honda comes in for an oil change cuz of the check engine light i reset it and there back soon to get another oil change. hahaha
Registered!!
Joined: Apr 2010
Posts: 70
Likes: 0
Rep Power: 0 
Re: Maintenance required light
I followed the steps to get rid of this light, and it keeps coming back on! The light will go out for about a half a second then it comes right back on! This is gonna bug the crap out of me does anyone know what this means?
Thread Starter
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 811 Re: Maintenance required light
are you sure its the "maint reqd" light and not something else? hold the trip meter button on the cluster, turn key to ON without starting engine, keep holding button for 20 secs, then turn car back off. next time it should be gone. if not, there may be a problem with the cluster.
Registered!!
Joined: Oct 2010
Posts: 6
Likes: 0
Rep Power: 0 Re: Maintenance required light
2001 Honda Civic - both low beam headlights stopped working at the same time...high beams ok. Replaced both with new lamps and nothing changed. The maintenance req'd light came on solid (not sure if same exact time lights went or not?! - not my car!), but car is also due for oil change. Didn't blink as normally would for oil change. Could this signal the problem with low beams not working? Previous post listed specific "morse code" (lol) readings for maint. req'd light.
30 A/T FI Signal A high/low input Bad AFSA line, TCM
31 A/T FI Signal B high/low input Bad AFSB line, TCM
I assume this refers to the headlights? If it is, my question is, what specifically? Does this signify an electrical problem on the light switch?
Also regarding oil - checked dipstick and couldn't get consistent reading...it was weird. All over the place, it would pull out clean one time and the next time it had oil all over. No reading whatsoever at the markers. Checked it warm and cold. Thought it might be low - added a quart and it barely registered on the bottom of the dipstick. Didn't DARE put more oil in, had changed oil 2 months ago and no signs of leaking or burning. The proper amount of oil was put in last change - three ppl verified. Any thoughts to what this could be?
30 A/T FI Signal A high/low input Bad AFSA line, TCM
31 A/T FI Signal B high/low input Bad AFSB line, TCM
I assume this refers to the headlights? If it is, my question is, what specifically? Does this signify an electrical problem on the light switch?
Also regarding oil - checked dipstick and couldn't get consistent reading...it was weird. All over the place, it would pull out clean one time and the next time it had oil all over. No reading whatsoever at the markers. Checked it warm and cold. Thought it might be low - added a quart and it barely registered on the bottom of the dipstick. Didn't DARE put more oil in, had changed oil 2 months ago and no signs of leaking or burning. The proper amount of oil was put in last change - three ppl verified. Any thoughts to what this could be?
