Check engine light
Hello everyone, The Hummer comes into the shop. Failed smog due to the SES light not illuminating. I found high resistance in the MIL control circuit from the ecm to the ipc. circuit 419. Using a scan tool the light does NOT come on. Testing the circuit at the... Login to read more.
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Vehicle Data2002 Hummer H1 6.5L
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Vehicle Data
2002 Hummer H1 6.5L
Engine | 6.5 L |
Trans | 4-speed Automatic (Electronic) |