The valve solenoid circuits are supplied with battery power when the ignition is ON. The EBTCM controls the valve functions by grounding the circuit when necessary.
The EBTCM senses a discrepancy such as an open, short to ground, or short to voltage in the circuit.
• | A malfunction DTC is stored. |
• | The ABS/TCS/Stabilitrak® is disabled. |
• | The ABS indicator is turned ON. |
• | The TRACTION CONTROL indicator is turned ON. |
• | The DIC displays the SERVICE STABILITY SYS message. |
• | The condition for DTC is no longer present and you used scan tool Clear DTCs function. |
• | The condition for DTC is no longer present and you used the On-Board Clear DTCs function. |
• | The EBTCM does not detect the DTC in 50 drive cycles. |
Make sure the integrity of the connection between the EBTCM and the BPMV is secure, tight, and free from corrosion.
The numbers below refer to step numbers on the diagnostic table.
Checks the resistance value of the solenoid.
Checks for a short to ground in the BPMV.
Checks for an internal short to voltage.
Step | Action | Value(s) | Yes | No |
---|---|---|---|---|
1 | Was the Diagnostic System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 |
Are the internal connectors OK and the cavity free of brake fluid? | -- | Go to Step 3 | Go to Step 6 |
Is the resistance within the specified range? | 8-12 ohms | Go to Step 4 | Go to Step 8 | |
Use the DMM in order to measure the resistance between the J 41247 terminal 13 and the BPMV case. Is the resistance equal to the specified value? | OL (infinite) | Go to Step 5 | Go to Step 8 | |
5 |
Does the DTC reset as a current DTC? | -- | Go to Step 9 | Go to Step 7 |
6 |
Did you complete the repair? | -- | Go to Diagnostic System Check | -- |
Using a scan tool set to ABS/TCS Special Functions in order to run the AUTOMATED Test. Does the DTC reset as a current DTC? | -- | Go to Step 8 | Go to Diagnostic System Check | |
8 | Replace the BPMV. Refer to Brake Pressure Modulator Valve Replacement . Did you complete the repair? | -- | Go to Diagnostic System Check | -- |
9 | Replace the EBCM/EBTCM. Refer to Electronic Brake Control Module Replacement . Did you complete the repair? | -- | Go to Diagnostic System Check | -- |