DTC P16B8-P16BA
Diagnostic Instructions
DTC Descriptors
DTC P16B8 00: Electric A/C Compressor Control Module Random Access Memory Performance
DTC P16B9 00: Electric A/C Compressor Control Module Read Only Memory Performance
DTC P16BA 00: Electric A/C Compressor Control Module Long-Term Memory Performance
Circuit/System Description
The A/C compressor will diagnose its own systems and determine when a fault condition is present. This diagnostic applies to internal microprocessor integrity conditions within the A/C compressor. This fault is internal to the A/C compressor and no external circuits are involved.
Conditions for Running the DTC
| • | System voltage is greater than 10.25 V. |
| • | The control module is awake and communicating. |
Conditions for Setting the DTC
The control module has detected an internal malfunction.
Action Taken When the DTC Sets
DTCs P16B8, P16B9 and P16BA are type A DTCs.
Conditions for Clearing the DTC
| • | DTCs P16B8, P16B9 and P16BA are type A DTCs. |
| • | After the vehicle has been OFF for a sufficient amount of time to allow the control modules to enter a sleep mode, the control modules will re-enable the output on the following ignition cycle and the DTC will become history. |
Circuit/System Verification
Verify that DTC P16B8, P16B9 or P16BA is not set.
| ⇒ | If any of the DTCs are set, replace the G1 A/C compressor. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control module replacement, programming and setup
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