GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1995 🢒 Sunfire 🢒 DTC 🢒 DTC P0601 Control Module Read Only Memory (ROM)

Step

Action

Values

Yes

No

1

Was the On-Board Diagnostic (OBD) System Check performed?

--

Go to Step 2

Go to Powertrain On Board Diagnostic (OBD) System Check

2
  1. Reprogram the EEPROM.
  2. Again retest for DTC P0601.

Did DTC set?

--

Go to Step 3

Go to Powertrain On Board Diagnostic (OBD) System Check

3

Replace the PCM.

Is the action complete?

--

Go to Powertrain On Board Diagnostic (OBD) System Check

--