burban89
1/2 ton status
Could someone please tell me in plain english what code 43 means?
43
EST circuit-low voltage detected
OR
ESC circuit problems
43
EST circuit-low voltage detected
OR
ESC circuit problems
CK5
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Why do codes read like VCR instuctions**Help**
- Thread starter burban89
- Start date
lectric80
3/4 ton status
There is a problem with the electronic spark control module. Most likely it is burned out.
just put a carb on it Craig..burban89 said:
get back to early wiring.the closest JR will get to computer in being on CK5.
burban89
1/2 ton status
lectric80 said:
Thanks
burban89
1/2 ton status
boggerless said:just put a carb on it Craig..
Believe me I have thought about it. But I like the gas mileage and reliability.
Don't assume it's the module. Low voltage could be anything...bad connector, bad wire, bad system voltage, or some other component malfunctioning that is triggering this code.
OBD1 NEVER tells you that one single component is bad...it has no diagnostic capabilities, other than to trigger a code when SOMETHING in that particular circuit is providing information the ECM doesn't expect.
You wouldn't replace the O2 sensor just because there is a lean O2 sensor error, or replace the MAP because it threw a low voltage error, this is the same way.
Do a good visual inspection, reseat the connectors, make sure they are in good shape.
OBD1 NEVER tells you that one single component is bad...it has no diagnostic capabilities, other than to trigger a code when SOMETHING in that particular circuit is providing information the ECM doesn't expect.
You wouldn't replace the O2 sensor just because there is a lean O2 sensor error, or replace the MAP because it threw a low voltage error, this is the same way.
Do a good visual inspection, reseat the connectors, make sure they are in good shape.
