For 1990-2009 cars
ABS Components
Cell 44: PWR, GND, Pump Motor, Valve Solenoids, and Stoplamp/BTSI Switch
Cell 10: Battery and Underhood Fuse Blocks
Cell 10: MISC LGT, COOL FNS, C/LTR/RDO/CLSTR/MISC, ABS SOL and ABSMOT Fuses
Cell 10: ABS/CCR and CLG FAN/TCC Fuses
Handling ESD Sensitive Parts Notice

### Circuit Description

The EBCM/EBTCM and the BPMV receive power from three circuits. CKT 642 supplies battery power to the pump motor. CKT 342 supplies ignition power to the solenoid valves, the EBCM/EBTCM, and the pump motor relay coil. CKT 641 supplies battery power to initialize controller operations. CKT 641 also supplies power to the solenoid valve relay coil.

### Conditions for Setting the DTC

The solenoid relay is commanded On and the solenoid relay voltage is less than 8.0 volts, and ignition voltage is greater than 10.5 volts

### Action Taken When the DTC Sets

• | A DTC C1214 is stored

• | The ABS/TCS is disabled

• | The ABS and the TRACTION OFF indicators turn On

### Conditions for Clearing the DTC

• | The condition for the DTC is no longer present and the scan tool Clear DTC function is used

• | 50 ignition cycles have passed with no DTC(s) detected

### Diagnostic Aids

• | Thoroughly inspect the wiring and the connectors. Failure to carefully and fully inspect the wiring and the connectors can result in misdiagnosis. Misdiagnosis may cause replacement of parts without repairing the malfunction.

• | The relays are integral to the EBCM/EBTCM and are not serviceable.

• | If an intermittent malfunction exists, refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.

#### DTC C1216 Solenoid Valve Relay Coil Circuit Open

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Diagnostic System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check
2 | Replace the EBCM/EBTCM. Refer to Electronic Brake Control Module Replacement . Is the replacement complete? | -- | Go to Diagnostic System Check | --