Radio

U0010 - CAN Interior Bus






For a complete wiring diagram, refer to.

• When Monitored: With the ignition on.

• Set Condition: The TIPM detects a short to ground on the CAN interior bus 125K (+) circuit or a short to voltage on the CAN interior bus 125K (-) circuit.






Test Step 1 - Test for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, record and erase TIPM DTC's.

• Cycle the ignition from ON to OFF 3 times.

• Turn the ignition ON.

• With the scan tool, read active TIPM DTC's.

Does the scan tool display this DTC as active?

Yes

• Go to Test Step 2.

No

• The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Test Step 2 - Any CAN Interior Bus 125K Module Internal Short

• When performing this step, turn the ignition OFF (wait one minute) before disconnecting any module. When the module is disconnected turn the ignition ON.

• This step is to determine if the fault is internal within a module.

• While monitoring the scan tool, disconnect each CAN interior bus 125K module, except for the TIPM itself, one at a time.

• Check for this DTC to become active after disconnecting each CAN interior bus 125K module the vehicle is equipped with.

• If the DTC becomes stored when a particular module is disconnected, that module is causing the DTC to set.

With all the CAN interior bus modules disconnected does the scan tool display this DTC as active?

Yes

• Go to Test Step 3.

No

• Replace the module that when disconnected caused this DTC to become stored..

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - CAN Interior Bus 125K (+) Circuit Short to Ground







• Turn the ignition OFF.

• Measure the resistance between ground and the CAN interior bus 125K (+) circuit at the TIPM C7 harness connector.

Is any resistance present?

Yes

• Repair the CAN interior bus 125K (+) circuit for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Go to Test Step 4.

Test Step 4 - CAN Interior Bus 125K (-) Circuit Short To Voltage







• Turn the ignition ON.

• Measure the voltage at the CAN interior bus 125K (-) circuit at the TIPM C7 harness connector.

Is the voltage more than 6 volts?

Yes

• Repair the CAN interior bus 125K (-) circuit for a short to voltage.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the totally integrated power module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior