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4. Conclusion: neoliberal hegemony – an actual threat to Western democracies?
System operation
Use this procedure if diagnostic code 261-13 Check Timing Sensor Calibration is present, if the ECM has been replaced or if work has been done to the engine front drive train.
The crankshaft position sensor provides an engine speed signal (rev/min) to the ECM. The signal is created as the crankshaft gear rotates past the pickup of the crankshaft position sensor. The camshaft position sensor provides the timing signal to the ECM. The signal is created as the camshaft gear rotates past the pickup of the camshaft position sensor. A unique pattern on the gear allows the ECM to determine the crankshaft position and when the cylinder number one piston is at the top of the compression stroke. In the event that the signal is lost from one of the sensors, a diagnostic code is generated. The ECM then uses special logic to allow the engine to start and run on only one sensor.
If the ECM requires replacement and will not communicate with the service tool to allow the timing calibration to be copied, or if work has been performed on the front drive train, a timing calibration must be performed.
Timing calibration is accomplished by installing a special magnetic pickup into the side of the engine block.
The magnetic pickup senses a special slot on the crankshaft counterweight. The magnetic pickup is then connected to the ECM through the engine harness speed/timing calibration connector P400, while the engine is running.
When Timing Calibration Mode is selected in the electronic service tool, the engine speed will be set to 1100 rev/min.
Note: Timing calibration will not increase or decrease the available engine power. Do not calibrate the engine timing expecting an increase in engine power.
Replacement ECM
If a replacement ECM is required, the ECM parameters and the timing calibration can be transferred from the suspect ECM to the replacement ECM. Timing calibration will NOT be necessary. This feature requires TIPSS-EST and is only possible if the existing ECM can communicate with TIPSS-TIPSS-EST.
Timing calibration 1 6V-2197 TC probe 2 Slot
3 Counterweight
A
1,02 mm (0,040 in) 1
2 3
Special tools
Diagnostic codes
Functional test
Part Number Description
6V-2197 Timing calibration probe
7X-1695 Harness adapter for deutsch “DT” timing probe connection 7X-1171 Timing calibration probe adapter sleeve
9S-9802 Engine turning tool
CID-FMI Conditions which generate this code: Systems response: Troubleshooting 261-13 Check Timing Sensor Calibration
Timing has not been calibrated since the ECM was installed or the calibration is out of specification more than the ECM will allow.
Electronic system response The ECM uses default timing.
Timing can be out of
specification by as much as 4°.
Engine response
The engine may run rough, emit white smoke in the exhaust or there may not be any noticeable performance effect.
Proceed with Test 9: Engine speed/timing calibration
Test step Result Action
Step 1: Install the timing adapter group
• Turn the key switch OFF, engine OFF
• Use the turning tool to put either the No. 1 or No. 6 piston at top centre. After locating top centre, rotate the engine back (rotate the engine in opposite direction of correct engine rotation) 60°.
• Remove the timing calibration plug from the left side of the engine and install the timing probe adapter sleeve into the hole for the plug.
OK
ð
Proceed to next step.Step 2: Install 6V-2197 TC probe on the engine
Caution: If the crankshaft is not in the correct position when the timing probe is installed, the timing probe will be damaged when the engine is started.
• Put a 2D-6392 O-ring on the end of the magnetic pickup sensor (a small amount of clean engine oil will allow the seal to slide onto the sensor more easily).
• Push the sensor through the adapter until it comes in contact with the outermost portion of the crankshaft counterweight. Move the O-ring downward against the adapter.
• Withdraw the magnetic transducer 1,0 mm (0.04 inch) and hand tighten the nut on the adapter sleeve in order to secure the magnetic pickup in place.
OK
ð
Proceed to next step.Step 3: Start engine and allow coolant to reach operating temperature
• Start the engine and run until the engine has warmed up enough to exit cold mode operation. The electronic service tool Status screen will display “COLD MODE” in the upper corner when cold mode operation exists.
• Check for ACTIVE diagnostic codes. Use the procedures in this manual to troubleshoot and repair any ACTIVE diagnostic codes before attempting a calibration check.
The engine must not have any diagnostic fault conditions present during the timing calibration, other than 261-13 Check Timing Sensor Calibration.
• Stop the engine.
OK
ð
Proceed to next step.Step 4: Connect an electronic service tool
• Connect an electronic service tool to the data link connector.
• Access the Timing Calibration screen located under the Service\Calibrations menu of the electronic service tool.
Note: To perform a timing calibration, the engine rev/min must be held as steady as possible at approximately 1100 rev/min. Any changes to engine rev/min (greater than 100 rev/min) will slow down the procedure and reduce accuracy. The correct engine speed is set automatically when Continue is selected on the Calibration screen.
• Connect the 7X-1695 7X-1695 Deutsch DT adapter harness for the 6V-2197 timing probe to the speed/timing calibration connector P400.
• Be certain that all connections (TC Probe, electronic service tool, etc) are made correctly.
• Start the engine
OK
ð
Proceed to next step.Test step Result Action
Step 5: Calibrate the speed/timing sensor
• To calibrate the timing to the correct setting select Continue on the electronic service tool and wait until the electronic service tool indicates that the timing is CALIBRATED.
Note: If the electronic service tool display reads
CALIBRATION UNSUCCESSFUL, the electronic injection timing has not been set. Recheck the tool installation and tool operation and try again to calibrate electronic injection timing. If the crankshaft and camshaft gears have been reassembled incorrectly (relative to each other), the engine will not calibrate.
If the timing calibration has been successfully completed, do not exit the Timing Calibration Screen on the electronic service tool until you have disconnected the timing probe from the speed/timing calibration connector P400.
OK
ð
The timing calibration procedure was completed successfully.Proceed to next step.
NOT OK
ð
Verify that the engine rev/min was stable during the testing (+ 50 rev/min).If the engine rev/min was unstable or could not be controlled within
+ 50 rev/min because of mechanical or electrical factors, refer toP-403:
Engine misfires, runs rough or is unstable on page 34.
If all of the checks are OK but the timing still will not calibrate, check the timing probe cable and timing probe to verify it is not bent. If it is not bent, restart this procedure.
Step 6: Disconnect timing probe before exiting
electronic service tool Monitor/Calibrate Timing screen
• Disconnect the timing probe from the speed/timing calibration connector P400.
• Exit the electronic service tool Timing Calibration screen.
OK
ð
STOP.NOT OK
ð
If the timing probe is still installed following exit of the electronic service tool Timing Calibration Screen, engine speed diagnostic codes may be generated and should be cleared.STOP.
Test step Result Action