DTC P0601-P0604, P0606, P062F, P16F3, or P2610 (LUJ)
Diagnostic Instructions
DTC Descriptors
| DTC P0601 00: Control Module Read Only Memory
Performance |
| DTC P0602 00: Control Module Not
Programmed |
| DTC P0603 00: Control Module Long Term Memory
Reset |
| DTC P0604 00: Control Module Random Access
Memory Performance |
| DTC P0606 00: Control Module Processor
Performance |
| DTC P062F 00: Control Module Long Term Memory
Performance |
| DTC P16F3 00: Control Module Redundant Memory
Performance |
| DTC P2610 00: Control Module Ignition Off
Timer Performance |
Circuit/System 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 accelerator
pedal position (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 00
| • |
The ignition switch is in Run
or Crank. |
| • |
The check sum calculation at
power-down in the last drive cycle had completely finished.
|
| • |
DTC P0601 00 runs once per
ignition cycle when the above condition is met. |
P0602 00
| • |
The ignition switch is in run
or crank. |
| • |
DTC P0602 00 runs once per
ignition cycle. |
P0603 00
| • |
The ignition switch is in run
or crank. |
| • |
DTC P0603 00 runs once per
ignition cycle. |
P0604 00
| • |
The ignition switch is in run
or crank. |
| • |
The read/write test at
power-down in the last drive cycle had completely finished.
|
| • |
DTC P0604 00 runs once per
ignition cycle when the above condition is met. |
P0606 00
| • |
The ignition switch is in the
unlock, accessory, run, or crank positions. |
| • |
The system voltage is more
than 5.23 V. |
| • |
DTC P0606 00 runs continuously
when the above conditions are met. |
P062F 00
| • |
The ignition is in the unlock,
accessory, run, or crank position. |
| • |
The system voltage is more
than 5.23 V |
| • |
DTCs P062F 00 runs once per
ignition cycle. |
P16F3 00
| • |
DTC P0606 00 is not
set. |
| • |
The ignition is in the unlock,
accessory, run, or crank position. |
| • |
The system voltage is more
than 5.23 V. |
| • |
DTCs P16F3 00 runs
continuously when the above conditions are met. |
P2610 00
| • |
DTCs P0112 00, P0113 00, or
P0114 00 are not set. |
| • |
The ECM is not powered
down. |
| • |
The intake air temperature
(IAT) is between -40 to +80°C (-40 to +176°F). |
| • |
DTC P2610 00 runs continuous
once the above conditions are met. |
Conditions for Setting the DTC
The ECM detects an internal failure or incomplete programming
for more than 10 s.
Action Taken When the DTC Sets
| • |
DTCs P0601 00, and P0604 00
Type B DTCs. |
| • |
DTC P0602 00, P0603 00, P0606
00, P062F 00, P16F3 00, and P2610 00 are Type C DTCs. |
Conditions for Clearing the DTC
| • |
DTCs P0601 00, and P0604 00
Type B DTCs. |
| • |
DTC P0602 00, P0603 00, P0606
00, P062F 00, P16F3 00, and P2610 00 are Type C DTCs. |
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 Testing
| 1. |
Observe the DTCs with the scan
tool. |
| ⇒ |
If DTC P0602 00 is set, attempt to program the K20
Engine Control Module before replacing the K20 Engine Control
Module. Refer to
Control Module References . |
| ⇒ |
If DTC P0602 00 resets, replace the K20 Engine
Control Module. |
| 2. |
Test the K20 Engine Control
Module voltage circuits at ECM connectors terminals 19 and 20 X1,
13 and 28 X2 and test the ground circuit at ECM connector terminal
73 X2 for the following: |
| ⇒ |
If all circuits test normal, replace the K20 Engine Control
Module. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
Control Module References for control module replacement,
programming and setup
|
