DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 Set in ECM
Diagnostic Instructions
DTC Descriptors
DTC P0601: Control Module Read Only Memory (ROM)
DTC P0602: Control Module Not Programmed
DTC P0603: Control Module Long Term Memory Reset
DTC P0604: Control Module Random Access Memory (RAM)
DTC P0606: Control Module Internal Performance
DTC P0607: Control Module Performance
DTC P060D: Control Module Accelerator Pedal Position (APP) System Performance
DTC P062F: Control Module Long Term Memory Performance
DTC P2610: Control Module Ignition Off Timer Performance
Description
This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM) and the throttle actuator control (TAC) system. This diagnostic also addresses if the ECM is not programmed.
The ECM monitors its ability to read and write to the memory. It also monitors a timing function. The ECM and the TAC processors are used to monitor the TAC system data. Both processors monitor the other processors data to verify that the indicated APP
calculation is correct. The ECM performs an intrusive test in order to confirm that the APP signals are not shorted together. The ECM accomplishes this by pulling the APP sensor 2 low momentarily and looking for sensor 1 to also be pulled low.
Conditions for Running the DTC
P0601
| • | The ignition switch is in Run or Crank. |
| • | DTC P0601 runs continuously when the above condition is met. |
P0602
| • | The ignition switch is in Run or Crank. |
| • | DTC P0602 runs once per ignition cycle. |
P0603
| • | The ignition switch is in Run or Crank. |
| • | DTC P0603 runs once per ignition cycle. |
P0604
| • | The ignition switch is in Run or Crank. |
| • | DTC P0604 runs continuously when the above condition is met. |
P0606
| • | The ignition switch is in the Unlock/Accessory, Run, or Crank positions. |
| • | The system voltage is more than 5.23 volts. |
| • | DTC P0606 runs continuously when the above conditions are met. |
P0607
| • | The ignition switch is in Unlock, Accessory, Run or Crank. |
| • | The system voltage is more than 5.23 volts. |
| • | DTCs P0601, P0602, P0603, P0604, P0606, P062F, P0641, P0651, P2610 are not set |
| • | DTC P0607 runs continuously when the above conditions are met. |
P060D
| • | The ignition switch is in the Unlock, Accessory, Run, or Crank position. |
| • | The system voltage is more than 5.23 volts. |
| • | DTC P060D runs continuously when the above conditions are met. |
P062F
| • | DTC P062F runs once per ignition cycle. |
P2610
| • | The ECM is powered down. |
| • | The intake air temperature is between -40 to +125°C (-40 to +257°F). |
| • | DTC P2610 runs once per ignition cycle. |
Conditions for Setting the DTC
The ECM detects an internal failure or incomplete programming for more than 10 seconds.
Actions Taken When the DTC Sets
| • | DTCs P0601, P0602, P0603, P0604, P0606, P060D, and P062F are Type A DTCs. |
| • | DTC P0607 is a Type C DTC. |
| • | DTC P2610 is a Type B DTC. |
Conditions for Clearing the MIL/DTC
| • | DTCs P0601, P0602, P0603, P0604, P0606, P060D, and P062F are Type A DTCs. |
| • | DTC P0607 is a Type C DTC. |
| • | DTC P2610 is a Type B DTC. |
Reference Information
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Circuit/System Testing
- Observe the DTCs with the scan tool.
| ⇒ | If DTC P0602 resets, replace the ECM. |
Important: An intermittent or momentary, less than 1 second, loss of system voltage during throttle tip-in may set DTC P060D.
- Test the voltage and ground inputs to the ECM for the following:
| ⇒ | If all circuits test normal, replace the ECM. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for ECM replacement, programming and setup
DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 set in FPCM
Diagnostic Instructions
DTC Descriptors
DTC P0601 00: Control Module Read Only Memory (ROM)
DTC P0602 00: Control Module Not Programmed
DTC P0603 00: Control Module Long Term Memory Reset
DTC P0604 00: Control Module Random Access memory (RAM)
DTC P0606 00: Control Module Internal Performance
DTC P062F 00: Control Module Long Term Memory Performance
Circuit/System Description
The internal fault detection is handled inside the fuel pump control module (FPCM). No external circuits are involved.
Conditions for Running the DTC
The FPCM runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.
Conditions for Setting the DTC
The FPCM has detected an internal malfunction.
Action Taken When the DTC Sets
The FPCM refuses all additional inputs.
Conditions for Clearing the DTC
| • | A current DTC clears when the malfunction is no longer present. |
| • | A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction. |
Diagnostic Aids
| • | This DTC may be stored as a history DTC without affecting the operation of the module. |
| • | If stored only as a history DTC and not retrieved as a current DTC, do not replace the module. |
| • | If this DTC is retrieved as both a current and history DTC, replace the module that the DTC set for. |
Reference Information
Electrical Information Reference
Circuit/System Verification
Verify that the FPCM is programmed correctly. If this DTC is still retrieved as current, replace the FPCM.
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the repair.
Control Module References
for FPCM replacement, setup, and programming
