DTC P0601-P0604, P0606, P0607, P0610, P062B, P062F, P0630, P16F3, or P2610 - ECM, LF1, LFW, LFX, LWR
Diagnostic Instructions
DTC Descriptors
DTC P0601: Control Module Read Only Memory Performance
DTC P0602: Control Module Not Programmed
DTC P0603: Control Module Long Term Memory Reset
DTC P0604: Control Module Random Access Memory Performance
DTC P0606: Control Module Processor Performance
DTC P062B: Control Module Fuel Injector Control Performance
DTC P062F: Control Module Long Term Memory Performance
DTC P0630: VIN Not Programmed or Mismatched - Engine Control Module (ECM)
DTC P16F3: Control Module Redundant Memory Performance
DTC P2610: Control Module Ignition off Timer Performance
Circuit/System Description
This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses if the ECM is not programmed, or is programmed incorrectly.
Conditions for Running the DTC
P0601, P062B, P0630, P16F3
These DTCs run continuously when the ignition is ON.
P0602, P0603, P062F
These DTCs run at power up.
P0604
DTC P0604 runs continuously when the ignition is ON. First memory scan may take up to 30 s.
P0606
| • | System voltage is greater than 6 V. |
| • | Reduced engine power is not active. |
| • | DTC P0606 runs continuously when the above conditions are met. |
P2610
| • | The intake air temperature is between -40 to +80°C (-40 to +176°F). |
| • | DTCs P0111, P0112, P0113 are not set. |
| • | DTC P2610 runs on ECM power down. |
Conditions for Setting the DTC
The ECM detects an internal failure or incomplete or incorrect programming.
Action Taken When the DTC Sets
| • | DTCs P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630 and P16F3 are Type A DTCs. |
| • | DTC P2610 is a Type B DTC. |
Conditions for Clearing the DTC
| • | DTCs P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630 and P16F3 are Type A DTCs. |
| • | DTC P2610 is a Type B DTC. |
Diagnostic Aids
Low voltage or a momentary loss of power or ground to the ECM may cause a DTC to set. Verify for the following:
| • | The ECM ground circuits do not have an open circuit or high resistance |
| • | The ECM power circuits do not have an open circuit, short to ground, or high resistance |
Reference Information
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641, P0651, P0697, or P06A3 does not set.
- Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630, P16F3, or P2610 should not set.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
- Ignition ON, clear the DTC information with a scan tool.
- Observe the scan tool DTC information. Verify that DTC P0602 or P0630 does not set.
| ⇒ | If DTC P0602 or P0630 failed this ignition, reprogramme the K20 ECM. Refer to Control Module References . If the DTC resets, replace the K20 ECM. |
- Observe the DTC information with a scan tool. Verify that DTC P0601, P0603, P0604, P0606, P062B, P062F, P16F3, or P2610 does not set.
| ⇒ | If a DTC failed this ignition, replace the K20 ECM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for engine control module replacement, setup, and programming
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