Below are some most Common Questions and their Solutions when customer meet when use tech tool ptt software programing ecu.
When attempting to program an ECU, I get error 121. What does this mean?
Error 121 is a generic “failed to program” message, so this can have several causes.
Tech Tool PTT 2.8.241
Solution 1:
One common cause is low battery Voltage to the ECU that is being programmed.
Solution 2:
Check all connections, and ensure that the vehicles batteries are good and
fully charged. You can also remove power from the ECU that is being programmed, wait,connect, and try a second time.
Solution 3:
If you are using the Volvo Vocom II, use the Vocom II Configurator and select Test tab and run the test to see the status of the truck.
This will help you determine if the truck is the issue.
When attempting to program an ECU, I get error 155. What does this mean?
Solution: Error 155 is a general “failed to program and can have a couple of causes.
Ensure that the adapter is properly connected. If attempting to program a module that is on the ISO (DL2) data link, test the ISO at the Diagnostic connector for proper resistance of 60 ohms.
I connect Tech Tool to the truck and some of the ECUs are missing from the Product Status, what should I do?
Solution: First ensure that the key is on, then check the batteries, connections and connect battery charger. Cycle the battery power switch (if equipped) and test the switch.If problem persists, check to see if this is a truck issue, Tech Tool issue or communication adapter. If you are using the Vocom II, use the Vocom II Configurator and select Test tab and run the test to see the status of the truck. This will help you determine if the truck is the issue.
Using the VOCOM II Adapter, Tech Tool shows I’m connected but it’s not reading the product?
Solution: Below is a list of Troubleshooting Steps. After each step retry connecting to vehicle.
1. Use the LOG MANAGER to restart the BAF.
2.Open the VOCOM II Configurator (located start menu under VOCOM II folder) to verify the adapter is identified, run the connectivity check (located under the menu button) for possible firewall issues and run a test by selecting the TEST tab for possible vehicle issues.
3. Inside Tech Tool select “Latest selection” to remove the Chassis history.