Crank Position Sensor - Suzuki Burgman Forum
 
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post #1 of 6 (permalink) Old 11-30-2016, 12:14 AM Thread Starter
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Crank Position Sensor

I have narrowed my problem down to the crank position switch or the ecm. My fuel pump is working but not spraying any fuel and there is no spark. So I am going to try and replace both. Any ideas where to locate the sensor and ecm and the side cover gasket?
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post #2 of 6 (permalink) Old 11-30-2016, 01:01 AM
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Look first on ebay. good used parts for a lot less money

Al in Sunny Tampa Bay Florida (St Petersburg)
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post #3 of 6 (permalink) Old 11-30-2016, 01:55 AM Thread Starter
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Do the two parts I mentioned seem to possibly be my problem?
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post #4 of 6 (permalink) Old 11-30-2016, 08:43 AM
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IF the CKP is the issue, I would crank the engine until I got an FI indication and see what the code is. You may have to crank for 5-10 seconds. I would expect a CKP diagnostic code (on the Boulevard series of bikes this is a C21 I think). Cranking for a while is the only way to get the code to show up in a no start situation.
When the engine is running, even a bad CKP may not show up as it is only degraded. TO get a CKP fault indication you pretty much have to have no output.

The sensor is only available as part of the stator assembly. When I replaced mine, I got it off ebay for about $70. New they're around $350-$400.

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post #5 of 6 (permalink) Old 11-30-2016, 03:04 PM
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Test the peak output of the crank position sensor. When you pull the generator cover off, be sure to check the CKP sensor for any contamination or metal particles on it. Clean the sensor well, blow it off with compressed air and test it again before replacing. Any metal contamination on the CKP sensor may cause it to not work. Cleaning it may restore it's proper operation, if you are lucky. Note: The cover may have difficulty coming off. The shaft goes into a bearing in the cover, and sometimes it is stuck on there, so some careful prying may be required. Use some rags under the cover lip and some wood tools to pry the cover off, so as not to scar or damage the cover gasket sealing surface. Work slowly and carefully, pulling it straight off.

CKP sensor resistance 190 – 290 Ω
CKP sensor peak voltage 4.5 V and more (When cranking) (+) probe: G/W, (–) probe: Bl

DTC “C12” (P0335): CKP Sensor Circuit Malfunction
B705H11104016
Detected Condition and Possible Cause

Detected Condition Possible Cause
Although the intake pressure is fluctuated, the signal
does not reach for 3 sec. or more.
NOTE
If SDS is used, P0355 is indicated.
• Metal particles or foreign material being attached on the
CKP sensor and rotor tip.
• CKP sensor circuit open or short.
• CKP sensor malfunction.
• ECM malfunction.

Wiring Diagram components:
Generator-To regulator/rectifier
ECM
CKP sensor
CKP

On ECM: (3) CKP, (9)
Wires from Sensor to ECM: G/W, Bl
Sensor Wires: BI, G
Drawing #I705H1110012-02
Good Luck with it.

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2006 Burgman AN650 K6 White (The White Knight)
2008 Burgman AN400 K8 Red (The Red Baron)
1977 Honda CB 750 Silver
1977 Penneys 50 Moped Red
1974 Yamaha 360 MX Yellow
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1972 Honda QA 50 Red
1971 Kaw Bighorn 350 Enduro Brown
1970 Kaw H1 500 Red
1968 Kaw 120 Scrambler Red
1968 Kaw 120 Scrambler Blue
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Last edited by E.D.; 11-30-2016 at 03:25 PM.
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post #6 of 6 (permalink) Old 11-30-2016, 09:09 PM Thread Starter
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Hey, thanks a lot!! I am working on it tomorrow and am checking everything you have mentioned. I noticed the outside of the three yellow wires coming out of the generator cover were very dirty. I will test clean and inspect everything. Thanks again
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