P0AFA CHEVROLET - Hybrid Battery System Voltage Low
P0AFA CHEVROLET Possible Causes
- 36 volt battery cable open
- Hybrid Battery Pack fuse open
- Hybrid Battery Pack contactor open
- Hybrid Battery Pack ground cable or connection
How is the P0AFA CHEVROLET code repair?Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
After excessive engine crank attempts where the engine turns over but does not start, the high voltage battery pack will be drained of power, similar to draining a 12V battery in a traditional powertrain.
The high voltage battery pack stores 288V DC in eight lithium–ion battery sections. The high voltage battery pack is charged during normal vehicle driving and is maintained at or near an optimum level of charge.
What is the cost to diagnose the P0AFA CHEVROLET code
Labor: 1.0The cost to diagnose the P0AFA CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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- Engine Light ON (or Service Engine Soon Warning Light)
P0AFA CHEVROLET MeaningThe Engine Control Module (ECM) monitors the correlation of the generator battery disconnect control module battery voltage and the Starter Generator Control Module (SGCM) output voltage to detect a 36 volt cable open or fuse/relay failure. The ECM also monitors to detect an over voltage condition and protect the MOSFET (load dump). If either one of these conditions is detected, the appropriate Diagnostic Trouble Code (DTC) will set.
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