DTC C1214 Solenoid Valve Relay Contact or Coil Circuit Open. Buick LeSabre 1998

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1998 🢒 LeSabre 🢒 Brakes 🢒 Antilock Brake System 🢒 DTC C1214 Solenoid Valve Relay Contact or Coil Circuit Open

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 following conditions are possible causes of the malfunction:

•	A problem in the power distribution system may result in no battery voltage to CKT 342

•	The ABS SOL fuse is open

•	CKT 342 has a wiring problem, corrosion, or faulty connections

•	There is an internal malfunction in the EBCM/EBTCM or the BPMV

•	The solenoid valve relay is faulty

•	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.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

This step checks for a short to ground in CKT 342.

This step checks for an internal short in the BPMV.

This step checks for an open in CKT 342.

DTC C1214 Solenoid Valve Relay Contact Circuit Malfunction

Step	Action	Value(s)	Yes	No
1	Was the Diagnostic System Check performed?	--	Go to Step 2	Go to Diagnostic System Check
2	Inspect the ABS SOL fuse in the LH underhood fuse block. Is the fuse OK?	--	Go to Step 7	Go to Step 3
3	Install a new ABS SOL fuse. Turn the ignition to the RUN position with the engine off. Recheck the ABS SOL fuse. Is the fuse OK?	--	Go to Diagnostic System Check	Go to Step 4
4	Turn the ignition switch to the OFF position. Remove the ABS SOL fuse. Disconnect the EBCM/EBTCM. Connect the J 39700 universal pinout box using the J 39700-25 cable adapter to the EBCM/EBTCM harness connector only. Using the J 39200 DMM, measure the resistance between the J 39700 terminals D and B. Is the resistance equal to the specified value?	OL (infinite)	Go to Step 5	Go to Step 10
5	Remove the EBCM/EBTCM from the BPMV. Connect the J 41247 pinout box to the BPMV. Measure the resistance between the J 41247 terminal 7 and the BPMV case. Is the resistance equal to the specified value?	OL (infinite)	Go to Step 9	Go to Step 6
6	Replace the BPMV. Refer to Brake Pressure Modulator Valve Replacement . Is the replacement complete?	--	Go to Diagnostic System Check	--
7	Reinstall the fuse, if removed. Using the J 39200 DMM, probe between the ABS SOL fuse test terminals and a good ground in order to measure the voltage. Is the voltage within specifications?	Battery Voltage	Go to Step 8	Go to Wiring Repairs in Wiring Systems
8	Turn the ignition switch to the OFF position. Disconnect the EBCM/EBTCM. Connect the J 39700 universal pinout box using the J 39700-25 cable adapter to the EBCM/EBTCM harness connector only. Using the J 39200 DMM, measure the voltage from the J 39700 terminal D to terminal B. Is the voltage within specifications?	Battery Voltage	Go to Step 9	Go to Step 11
9	Replace the EBCM/EBTCM. Refer to Electronic Brake Control Module Replacement . Is the replacement complete?	--	Go to Diagnostic System Check	--
10	Repair the short to ground in CKT 342. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete?	--	Go to Diagnostic System Check	--
11	Repair the open or high resistance in CKT 342. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete?	--	Go to Diagnostic System Check	--