SID 52 & 51 & PID 172?

Yamada · May 24, 2023

60 series 14L
There it is.. the fan switch used to work but now when I press it, nothing happens.. now it doesn't, recently replaced the ECM..
What do these mean in particular?

JB7 · May 24, 2023

Yamada said: ↑

60 series 14L
There it is.. the fan switch used to work but now when I press it, nothing happens.. now it doesn't, recently replaced the ECM..
What do these mean in particular?
Click to expand...

27 172 172 -- 3 Air Temperature Sensor Input Voltage High
Looks like some wiring problems. Note that the first 2 are constant and the 172 is Intermittent. Pull off the connector(s) at the ECM. Make sure that no pins are damaged. Make sure pins E-48 and E-49 are there. Maybe ECM not exactly correct.

Yamada · May 30, 2023

JB7 said: ↑

27 172 172 -- 3 Air Temperature Sensor Input Voltage High
Looks like some wiring problems. Note that the first 2 are constant and the 172 is Intermittent. Pull off the connector(s) at the ECM. Make sure that no pins are damaged. Make sure pins E-48 and E-49 are there. Maybe ECM not exactly correct.
Click to expand...

wire problems was the culprit right on the money.. the only thing now is.. my fan doesn't kick on at 200-210 now.. the fan doesn't kick on when the AC is switched off... not sure what it is.. I replaced the temperature sensor and ECM... It might be the thermostat ? I'm not sure if I installed/oriented it correctly. I'm currently searching in the service manual to verify

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SID 52 & 51 & PID 172?

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Attached Files:

SID 51, 52.png

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SID 52 & 51 & PID 172?

Yamada Bobtail Member

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JB7 Heavy Load Member

Attached Files:

SID 51, 52.png

Yamada Bobtail Member

Wait, employers can't reach you!