Fault In The Solenoid Circuit
Fault in the solenoid circuit
Checking shift solenoid S1
- Ignition on.
- Gear selector in P.
Activate solenoid S1. Read off the solenoid status. The status should alternate between OFF / ON.
Does the status change?
Yes - Intermittent fault
No - Connecting the breakout box
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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
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CONNECTED - CONNECTED
NOT CONNECTED - Connecting the breakout box
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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
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DONE - Checking the ground terminal
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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
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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
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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
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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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
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Attempt New Test - Connecting the breakout box
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CONNECTED - Checking resistance in solenoid S1 circuit
FAULT FOUND - Fault-tracing information
FAULT-TRACING FAILED - Checking resistance in solenoid S1 circuit
No Fault Found - Checking resistance in solenoid S1 circuit
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Fault-tracing information
The cause of the diagnostic trouble code (DTC) was a poor power ground.
Continue - Verification
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Checking resistance in solenoid S1 circuit
- Ignition off.
- Control module disconnected.
Connect an ohmmeter between terminal 17 on the breakout box and the transmission housing.
The ohmmeter should read 12-18 ohms.
OK - Checking the signal cable for a short-circuit to supply voltage
Not OK - Checking the signal cable
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Checking the signal cable
- Ignition off.
- Disconnect the 6-pin transmission connector.
Connect an ohmmeter between the 6-pin transmission connector terminal 3 (control module side) and terminal 17 on the breakout box. For further information about the connectors, see Transmission connectors Transmission Connectors.
The ohmmeter should read approximately 0 ohms.
OK - Checking the circuit for solenoid S1 in the transmission
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check the cable between the 6-pin transmission connector terminal 3 and control module terminal 17 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Continue - Verification
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Checking the circuit for solenoid S1 in the transmission
- Ignition off.
- 6-pin transmission connector disconnected.
Connect an ohmmeter between the 6-pin transmission connector terminal 3 (transmission side) and the transmission housing.
The ohmmeter should read 12-18 ohms.
OK - Checking for loose connections and contact resistance
Not OK - Checking resistance in solenoid S1
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Checking for loose connections and contact resistance
The cause of the diagnostic trouble code (DTC) was loose connections in the transmission connector. Check, and remedy if necessary, the transmission connector and the control module connector for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check, and remedy if necessary, the transmission connector and the control module connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Continue - Verification
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Checking resistance in solenoid S1
- Open the control system according to Solenoids, inspection/replacement Removal and Replacement.
- Disconnect solenoid S1.
Connect an ohmmeter between the pin on solenoid S1 and the transmission housing.
The ohmmeter should read 12-18 ohms.
OK - Checking for an open-circuit
Not OK - Replacing the component
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Checking for an open-circuit
Check the cable between solenoid S1 and the 6-pin transmission connector terminal 3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault When replacing the cable harness, see Inspecting / replacing the cable harness for the solenoids Inspecting / Replacing The Cable Harness For The Solenoids.
Continue - Verification
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Replacing the component
Try a new solenoid S1 according to Solenoids, inspection/replacement Removal and Replacement.
Continue - Verification
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Checking the signal cable for a short-circuit to supply voltage
- Control module disconnected.
- Ignition on.
Connect a voltmeter between terminal 17 on the breakout box and the transmission housing.
The voltmeter should read approximately 0 V.
OK - Checking the control module
Not OK - Checking for a short-circuit to supply voltage
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Checking for a short-circuit to supply voltage
Check the cable between solenoid S1 and transmission control module (TCM) terminal 17 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
When replacing the cable harness, see Inspecting / replacing the cable harness for the solenoids Inspecting / Replacing The Cable Harness For The Solenoids.
Continue - Verification
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Checking the control module
- Ignition off.
- Disconnect the breakout box.
- Connect the control module.
- Ignition on.
Erase the diagnostic trouble codes (DTC).
Continue - Checking the control module, continued
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Checking the control module, continued
- Gear selector in P.
- Start the engine.
- Wait approximately 15 seconds.
Check to see if the diagnostic trouble code (DTC) recurs.
Does the diagnostic trouble code (DTC) recur?
Yes - Replacing the component
No - Checking contact resistance and oxidation
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Replacing the component
Try a new control module according to Replacing the transmission control module (TCM) .
Continue - Verification
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Checking contact resistance and oxidation
The cause of the diagnostic trouble code (DTC) was loose connections in the control module connector. Check the control module connector for contact resistance and oxidation and remedy according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Continue - Verification
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Verification
Verification
Hint: After repairs have been completed they must be verified as follows to ensure that the fault has been eliminated:
- Ignition off.
- Reconnect connectors and reinstall components.
- Ignition on.
Activate solenoid S1. Read off solenoid status. The status should alternate between OFF / ON.
Does the status change?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking shift solenoid S1
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Intermittent fault
Fault in the solenoid circuit. Intermittent fault
Intermittent fault
- Check the 6-pin transmission connector and the control module connector for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
- Check the cable between solenoid S1 and control module terminal 17 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
- Check the cable between the ground terminal and control module terminal 1 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
- Check the ground terminal for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Continue - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking shift solenoid S1
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Connecting the breakout box
FAULT FOUND - Checking resistance in solenoid S1 circuit
FAULT-TRACING FAILED - Checking the signal cable
No Fault Found - Checking the signal cable
CONNECTED - Checking the signal cable
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