近來小弟的6S(05)常有無法發動的困擾，狀況如下:
按下啟動鈕後，只聽到繼電器動作聲，METER 亮ABS & 引擎燈但不發動，放開啟動鈕後會聽到油PUMP重新加壓後某繼電器動作之聲音，試幾次後METER里程數消失該位置出現"12"(應該是故障碼)，但並不是每次都這樣，有時一下就發動，有時要是好一會才發動， 剛剛查了一下

Fault Code: 12
Diagnostic Code: --
Symptom: No normal signals are received from the crankshaft position sensor.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective crankshaft position sensor.
Malfunction in pickup rotor.
Malfunction in ECU.
Improperly installed sensor.

請教各位大大，我該怎麼做?這是什狀況，能不能幫我解讀一下~~感恩~~~

電瓶快掛了吧！

a8912019 寫到:

電瓶快掛了吧！

電瓶還粉新，電壓也正常，我也曾經懷疑過，可是很多次是一停下來就發不動，曾經外掛電源試(我有做一條電源外引線，用來救車用的)還是一樣ㄋㄟ~~~

pcsam20 寫到:

Fault Code: 12 Diagnostic Code: -- Symptom: No normal signals are received from the crankshaft position sensor. Probable cause of malfunction: Open or short circuit in wiring harness. Defective crankshaft position sensor. Malfunction in pickup rotor. Malfunction in ECU. Improperly installed sensor.

故障碼：12
診斷碼：--
徵狀：無法接收來自曲軸位置感應器的訊號
可能的發生原因：
電路發生開迴路或短迴路現象
曲軸位置感應器故障
曲軸端感應盤故障
行車主控電腦故障
曲軸位置感應器未正確的安裝

唐諾 寫到:

故障碼：12 診斷碼：-- 徵狀：無法接收來自曲軸位置感應器的訊號 可能的發生原因： 電路發生開迴路或短迴路現象 曲軸位置感應器故障 曲軸端感應盤故障 行車主控電腦故障 曲軸位置感應器未正確的安裝

一切都指向"曲軸感應器"那他在哪裡~~~~

唐諾 寫到:

故障碼：12 診斷碼：-- 徵狀：無法接收來自曲軸位置感應器的訊號 可能的發生原因： 電路發生開迴路或短迴路現象 曲軸位置感應器故障 曲軸端感應盤故障 行車主控電腦故障 曲軸位置感應器未正確的安裝

好專業...

PS: 電瓶掛, 有時候會出現故障碼:46...

分享一下，我找到的故障碼

Fault Code: 12
Diagnostic Code: --
Symptom: No normal signals are received from the crankshaft position sensor.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective crankshaft position sensor.
Malfunction in pickup rotor.
Malfunction in ECU.
Improperly installed sensor.

Fault Code: 13
Diagnostic Code: 03
Symptom: Intake air pressure sensor-open or short circuit detected.
Probable cause of malfunction:

Open or short circuit in wiring sub lead.
Open or short circuit in wiring harness.
Defective intake air pressure sensor.
Malfunction in ECU.

Fault Code: 14
Diagnostic Code: 03
Symptom: Faulty intake air pressure sensor pipe system
Probable cause of malfunction:

detected hose
clogged hose
Intake air pressure sensor hose is detached, clogged,
kinked, or pinched.
Malfunction in ECU.

Fault Code: 15
Diagnostic Code: 01
Symptom: Throttle position sensor-open or short circuit detected.
Probable cause of malfunction:

Open or short circuit in wiring sub lead.
Open or short circuit in wiring harness.
Defective throttle position sensor.
Malfunction in ECU.
Improperly installed throttle position sensor.

Fault Code: 16
Diagnostic Code: 01
Symptom: A stuck throttle position sensor is detected.
Probable cause of malfunction:

Stuck throttle position sensor.
Malfunction in ECU. 01

Fault Code: 19
Diagnostic Code: 20
Symptom: Open circuit in the input line of ECU No4 terminal is detected when the start switch is pressed.
Probable cause of malfunction:

Open circuit in wiring harness (ECU coupler).
Malfunction in ECU.

Fault Code: 21
Diagnostic Code: 06
Symptom: Coolant temperature sensor-open or short circuit detected.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective coolant temperature sensor.
Malfunction in ECU.
Improperly installed sensor.

Fault Code: 22
Diagnostic Code: 05
Symptom: Intake air temperature sensor-open or short circuit detected.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective intake temperature sensor.
Malfunction in ECU.
Improperly installed sensor.

Fault Code: 30
Diagnostic Code: 08
Symptom: The motorcycle has overturned.

Probable cause of malfunction:
Overturned.
Malfunction in ECU.

Fault Code: 33
Diagnostic Code: 30
Symptom: Open circuit is detected in the primary lead of the ignition coil (# 1, #4).
Probable cause of malfunction:

Open circuit in wiring harness.
Malfunction in ignition coil.
Malfunction in ECU.
Malfunction in a component of ignition cut-off circuit system.

Fault Code: 34
Diagnostic Code: 31
Symptom: Open circuit is detected in the primary lead of the ignition coil (# 2, #3).
Probable cause of malfunction:

Open circuit in wiring harness.
Malfunction in ignition coil.
Malfunction in ECU.
Malfunction in a component of ignition cut-off circuit system.

Fault Code: 41
Diagnostic Code: 08
Symptom: Lean angle cut-off switch-open or short circuit detected.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective lean angle cut-off switch.
Malfunction in ECU.

Fault Code: 42
Diagnostic Code: 07, 21
Symptom: No normal signals are received from the speed sensor; or, an open or
short circuit is detected in the neutral switch.
Probable cause of malfunction:

Open or short circuit in wiring harness.
Defective speed sensor.
Malfunction in vehicle speed sensor detected unit.
Defective neutral switch.
Malfunction in the engine side of the neutral switch.
Malfunction in ECU.

Fault Code: 43
Diagnostic Code: 09
Symptom: Supply power to the injector and fuel pump is not normal
Probable cause of malfunction:

Open circuit in wiring harness. (red/blue line or blue/yellow line)
Malfunction in ECU.

Fault Code: 44
Diagnostic Code: 60
Symptom: An error is detected while reading or writing on EEPROM.
Probable cause of malfunction:

Malfunction in ECU. (The CO adjustment value is not properly written on or read from the internal memory).

Fault Code: 46
Diagnostic Code: --
Symptom: Power supply to the FI system is not normal.

Probable cause of malfunction:
Malfunction in "CHARGING SYSTEM".

Fault code: 50
Diagnostic Code: --
Symptom: Faulty ECU memory. When this malfunction is detected, the code
number might not appear on the meter.
Probable cause of malfunction:

Malfunction in ECU. (The program and data are not
properly written on or read from the internal memory.)

Fault code: Er-1
Diagnostic Code: --
Symptom: No signals are received from the ECU.
Probable cause of malfunction:

Open or short circuit in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.

Fault code: Er-2
Diagnostic Code: --
Symptom: No signals are received from the ECU within the specified duration.
Probable cause of malfunction:

Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.

Fault code: Er-3
Diagnostic Code: --
Symptom: Data from the ECU cannot be received correctly.
Probable cause of malfunction:

Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.

Fault code: Er-4
Diagnostic Code: --
Symptom: Non-registered data has been received from the meter.
Probable cause of malfunction:

Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.

pcsam20 寫到:

一切都指向"曲軸感應器"那他在哪裡~~~~

在這裡！這兩張圖希望對您有所幫助：

我發現,疑難雜症區有故障碼的中文名辭......

唐諾 寫到:

在這裡！這兩張圖希望對您有所幫助： http://motocity.idv.tw/img/up/1009a/1009190110060.jpg http://motocity.idv.tw/img/up/1009a/1009190110071.jpg

我的修好了,一樣的現象,但我是修starter relay.

pcsam20 寫到:

近來小弟的6S(05)常有無法發動的困擾，狀況如下: 按下啟動鈕後，只聽到繼電器動作聲，METER 亮ABS & 引擎燈但不發動，放開啟動鈕後會聽到油PUMP重新加壓後某繼電器動作之聲音，試幾次後METER里程數消失該位置出現"12"(應該是故障碼)，但並不是每次都這樣，有時一下就發動，有時要是好一會才發動， 剛剛查了一下 Fault Code: 12 Diagnostic Code: -- Symptom: No normal signals are received from the crankshaft position sensor. Probable cause of malfunction: Open or short circuit in wiring harness. Defective crankshaft position sensor. Malfunction in pickup rotor. Malfunction in ECU. Improperly installed sensor. 請教各位大大，我該怎麼做?這是什狀況，能不能幫我解讀一下~~感恩~~~

sean1017 寫到:

我的修好了,一樣的現象,但我是修starter relay.

應該是 正解!

sean1017 寫到:

我也覺得是某個relay，能說一下你的狀況嗎?可以幫助我判斷，你是把RELAY換就好了嗎?

很好試,那個relay就在電池正上方,你拿東西short一下,如果能發動,就表示應該是那個relay壞了.

pcsam20 寫到:

我也覺得是某個relay，能說一下你的狀況嗎?可以幫助我判斷，你是把RELAY換就好了嗎?

RELAY壞了
這是什麼