DTC P0602-P0606, P060A, P060B, P060D, P060E, P061A, P061C, P061D, or P062F (LLU)
/ 9-5 (9650) / 2011 / 2. Engine / Engine management and fuel system, 1.6 l petrol / Fault diagnosis, diagnostic trouble codes / DTC P0602-P0606, P060A, P060B, P060D, P060E, P061A, P061C, P061D, or P062F (LLU)
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DTC P0602-P0606, P060A, P060B, P060D, P060E, P061A, P061C, P061D, or P062F (LLU)
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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 P0605 00
Control Module Programming Read Only Memory Performance
DTC P0606 00
Control Module Processor Performance
DTC P060A 00
Control Module Monitoring Processor Performance
DTC P060B 00
Control Module Analog to Digital Converter Performance
DTC P060D 00
Control Module Accelerator Pedal (APP) Position System Circuitry Performance
DTC P060E 00
Control Module Throttle Position System Circuitry Performance
DTC P061A 00
Control Module Torque System Circuitry Performance
DTC P061C 00
Control Module Engine Speed System Circuitry Performance
DTC P061D 00
Engine Load
DTC P062F 00
Control Module Long Term Memory Performance
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Circuit/System Description
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These 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 timer function. The ECM and TAC processors are used to monitor the data of the TAC system. Both processors monitor the data of the other processors in order to validate that the indicated accelerator pedal position is calculated correctly. The ECM performs an intrusive diagnostic to check that the accelerator pedal position (APP) signals are not shorted. To do this, the ECM temporarily lowers APP sensor 2 and checks whether sensor 1 also gets lowered.
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Conditions for Running the DTC
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P0602 00
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The ignition switch is in run or crank.
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DTC P0602 00 runs once per ignition cycle.
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P0603 00
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The ignition switch is in run or crank.
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DTC P0603 00 runs once per ignition cycle.
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P0604 00
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The ignition switch is in run or crank.
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The read/write test at power-down in the last drive cycle had completely finished.
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DTC P0604 00 runs once per ignition cycle when the above condition is met.
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P0605 00
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The ignition switch is in run or crank.
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The system voltage is more than 5.23 V.
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DTC P0606 00 runs continuously when the above conditions are met.
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P0606 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P0606 00 runs continuously when the above conditions are met.
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P060A 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTCs P0602 00, P0603 00, P0604 00, P0605 00, P0606 00, and P062F 00 are not set
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DTC P060A 00 runs continuously when the above condition is met.
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P060B 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P060B 00 runs continuously when the above conditions are met.
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P060D 00
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DTC P0606 00 is not set.
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTCs P060D 00 runs continuously when the above conditions are met.
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P060E 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P060E 00 runs continuously when the above conditions are met.
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P061A 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P061A 00 runs continuously when the above conditions are met.
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P061C 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P061C 00 runs continuously when the above conditions are met.
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P061D 00
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DTCs P0100 00, P0102 00, or P0103 00 are not set.
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTC P061D 00 runs continuously when the above conditions are met.
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P062F 00
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The ignition is ON or the engine is running.
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The system voltage is more than 5.23 V.
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DTCs P062F 00 runs once per ignition cycle.
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Conditions for Setting the DTC
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P0602 00
The ECM detects programming error, or programming incomplete. This DTC runs continuously.
P0603 00
The ECM check sum value at the last power down does not match the ECM check sum value during the current power up for one sample. Each test is 10 mS. The ECM detects that the check sum value at the previous power down does not match the ECM check sum value during the current power up for 0.01 seconds. This diagnostic runs once per ignition cycle at power up.
P0604 00
The ECM is unable to correctly write and read to and from random access memory (RAM) during the following conditions:
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Key up initialization for one count. Each count is a read and write sample. Each sample is 100 mS. This portion runs once per ignition cycle.
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Counter increments by 10 for each sample that does not correctly read and write to the RAM, and decrements by one for each correct sample. No more than 20 counts which do not read and or write correctly. Each read and write sample is 100 mS. This portion runs continuously.
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Counter increments by 10 for each sample that does not correctly read and write to the desired throttle position RAM and decrements by one for each correct sample. No more than 20 counts which do not read and or write correctly. Each read and write sample is 12.5 mS. This portion runs continuously.
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P0605 00
The ECM detects that the TAC system has a process sequence error, clock error, and 2 motor processor errors, or TAC internal processor is not operating correctly. Each test runs in 12.5, 25, 50, 100 or 250 mS. This DTC runs continuously.
P0606 00, P060A 00
The ECM detects read only memory (ROM) errors. These DTCs runs continuously.
P060B 00
The ECM detects an incorrect internal analog/digital (A/D) signal for less than 1 s.
P060D 00, P060E 00
The APP sensor 1 and APP sensor 2 voltage is more than 2.5% for more than 3 s during the intrusive test, or the APP sensor calculations in the main processor differ from the motor control processor by more than 0.95-1.8 V. These diagnostics run continuous.
P061A 00, P061C 00, P061D 00
The ECM detects an internal calculation error between calculated engine load and actual engine load. These diagnostics run continuous.
P062F 00
The ECM did not complete the last electrically erasable programmable read only memory (EEPROM) write event during the last ECM power down. This diagnostic runs once per ignition cycle at power up.
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Action Taken When the DTC Sets
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DTCs P0602 00, P0604 00, P0605 00, P0606 00, P060A 00, P060B 00, P060D 00, P060E 00, P061A 00, P061C 00, P061D 00, and P062F 00 are Type C DTCs.
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DTC P0603 00 is a Type D DTCs.
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The engine control module commands the throttle actuator control system to operate in reduced engine power mode.
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The service vehicle soon indicator may illuminate.
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Under certain conditions, the engine control module commands the engine OFF.
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Conditions for Clearing the DTC
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DTCs P0602 00, P0604 00, P0605 00, P0606 00, P060A 00, P060B 00, P060D 00, P060E 00, P061A 00, P061C 00, P061D 00, and P062F 00 are Type C DTCs.
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DTC P0603 00 is a Type D DTCs.
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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
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Observe the DTC information with the scan tool. Verify DTC P0602 00 is not set.
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If DTC P0602 00 is set, attempt to program the K20 Engine Control Module. Refer to
Control Module References
. If DTC P0602 00 resets, perform the following steps:
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Ensure that all tool connections are secure.
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Ensure that the programming equipment is operating correctly.
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Ensure the correct software and the correct calibrations are being used.
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If DTC P0602 00 resets, replace the K20 Engine Control Module.
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3.
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Test the K20 Engine Control Module voltage circuits at ECM connector X2 terminals 70, 6, and 76 and test the ground circuit at ECM connector X2 terminal 1, 2, and 3 for the following:
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If all circuits test normal, replace the K20 Engine Control Module.
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Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Control Module References
for control module replacement, programming and setup
