Slipping Or Not Engaged
Slipping or not engaged
Checking transmission control module (TCM)
Check that the transmission control module (TCM) has the correct P/N. Compare the transmission control module (TCM) P/N with the engine and transmission specifications. Engine - transmission - control modules Application and ID.
- Select the VCT 2000 symbol to read the control unit id.
Is the transmission control module (TCM) P/N correct?
Yes - Connecting the breakout box
Connecting the breakout box
No - Replacing component
-------------------------------------------------
Replacing component
Try a new control module according to Replacing the transmission control module (TCM) .
Continue - Test drive
-------------------------------------------------
Connecting the breakout box
Connecting the breakout box
951 1355 Adapter 42-pin 951 1355 Adapter 42-pin 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428
Information
Connecting the breakout box to AW50-42
Is the breakout box connected to the control module?
Yes - CONNECTEDReturn to fault-tracing.
No - NOT CONNECTED
------------------------
CONNECTED - CONNECTED
NOT CONNECTED - Connecting the breakout box
-------------------------------------------------
Connecting the breakout box
Connecting the breakout box
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 951 1355 Adapter 42-pin 951 1355 Adapter 42-pin
Connecting the breakout box
Caution! The voltage supply to the control module must be disconnected when disconnecting the breakout box. Failure to observe this procedure could seriously damage the control module.
- Ignition off
- Expose and disconnect the AW50-42 transmission control module (TCM) according to Replacing the transmission control module (TCM) .
- Control module disconnected.
Connect adapter 951 1355 Adapter 42-pin 951 1355 Adapter 42-pin to the control module connector (wiring side). Connect breakout box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 to the adapter.
Note! Ensure that the adapter is the right way around.
Continue - DONE
------------------------
DONE - Checking the ground terminal
-------------------------------------------------
Checking the ground terminal
- Ignition off.
- Control module disconnected.
- Switch off all power consuming equipment, such as courtesy lighting, radio etc.
Connect an ohmmeter between terminal 1 on the breakout box and the battery negative terminal.
The ohmmeter should read approximately 0 ohms.
OK - Return to the fault-tracing procedure where it was interrupted.
No Fault Found
Not OK - Checking for an open-circuit, contact resistance and oxidation
-------------------------------------------------
Checking for an open-circuit, contact resistance and oxidation
Check ground terminal 31/20 and the lead between the ground terminal and control module #1 for open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Check the ground lead between the battery and the body for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Continue - Verification
-------------------------------------------------
Verification
Verification
Hint: After repairs have been completed they must be verified as follows to ensure that the fault has been eliminated:
- Ignition off
- Switch off all power consuming equipment, such as courtesy lighting, radio etc.
- Control module disconnected
Connect an ohmmeter between #1 on the breakout box and the battery negative terminal.
The ohmmeter should read approximately 0 ohms.
OK - VERIFIED
Not OK - VERIFICATION FAILED
------------------------
VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
-------------------------------------------------
Fault-tracing information
Information
Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.
Do you want to terminate fault-tracing at this time?
Yes - Exit fault-tracing
No - Attempt New Test
------------------------
Attempt New Test - Connecting the breakout box
-------------------------------------------------
CONNECTED - Checking resistance in solenoid SL circuit
FAULT FOUND - Checking resistance in solenoid SL circuit
FAULT-TRACING FAILED - Checking resistance in solenoid SL circuit
No Fault Found - Checking resistance in solenoid SL circuit
-------------------------------------------------
Checking resistance in solenoid SL circuit
- Ignition off.
- Control module disconnected.
Connect an ohmmeter between #2 and #1 on the breakout box.
The ohmmeter should read approximately 12-16 ohms.
OK - Test drive
Not OK - Checking for contact resistance and oxidation
-------------------------------------------------
Checking for contact resistance and oxidation
Check the 6-pin transmission connector and transmission control module (TCM) connector for contact resistance and oxidation and remedy according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Continue - Test drive
-------------------------------------------------
Test drive
- Ignition off.
- Reconnect connectors, reinstall components.
- Connect control module.
- As VCT 2000 cannot be used as a hand held test tool, use the Volvo System Tester during test-driving in order to see the various values and functions. To connect the Volvo System Tester see Connecting the Volvo Scan Tool (ST) Connecting The Volvo Scan Tool (St).
- Read off diagnostic trouble code (DTC) counter and make a note of the value.
- To test-drive the car, see Test Drive Form, description Test Drive Form, Description.
Hint: See Mechanical Lock-up Mechanical Lock-Up for the driving conditions required to engage and disengage lock-up. The transmission should be at normal operating temperature when test driving because lock-up engagement is dependant on the oil temperature in the transmission.
Note! Do not switch off ignition.
- Read off diagnostic trouble code (DTC) counter without switching off the ignition.
Is counter value greater than 0?
Yes - FAULT FOUND
No - Checking mechanical faults
-------------------------------------------------
Checking mechanical faults
Terminate current fault-tracing. Add mechanical symptoms to the symptoms list and fault-trace the symptoms.
Continue - No Fault Found
-------------------------------------------------