DTC C1327 [DSC/RSC]

id0402b3811500

DTC | C1327 | Brake fluid level sensor
DETECTION CONDITION | • Brake fluid level remains low
POSSIBLE CAUSE | • Decrease in amount of brake fluid • Malfunction of brake fluid level sensor • DSC/RSC HU/CM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT FOR BCM MALFUNCTIONFOR DTCs • Turn the ignition switch off. • Using the M-MDS, perform the DTC inspection for the BCM. • Are any DTCs detected? | Yes | Go to applicable DTC inspection. (See DTC TABLE [BCM])
No | Go to the next step.
2 | INSPECT BRAKE FLUID LEVEL • Inspect the brake fluid level. • Is it normal? | Yes | Go to Step 5.
No | Go to the next step.
3 | INSPECT DISC PAD THICKNESS • Inspect the thickness of the disc pads. (See FRONT BRAKE (DISC) INSPECTION.) (See REAR BRAKE (DISC) INSPECTION.) • Are the disc pads normal? | Yes | Go to the next step.
No | After replacing a disc pad, adjust the brake fluid level to the specification, and then go to Step 6. (See DISC PAD (FRONT) REPLACEMENT.) (See DISC PAD (REAR) REPLACEMENT.)
4 | INSPECT BRAKE SYSTEM BRAKE FLUID LEAKAGE • Inspect for brake fluid leakage in the brake system including the connection area between the master cylinder and the power brake unit. • Is the brake system normal? | Yes | Go to the next step.
No | After repairing or replacing the fluid leakage area of the brake system, adjust the brake fluid level to the specification, and then go to Step 6.
5 | INSPECT BRAKE FLUID LEVEL SENSOR • Inspect the brake fluid level sensor. (See BRAKE FLUID LEVEL SENSOR INSPECTION.) • Is the brake fluid level sensor normal? | Yes | Go to the next step.
No | After replacing the brake fluid level sensor, adjust the brake fluid level to the specification, and then go to the next step. (See MASTER CYLINDER REMOVAL/INSTALLATION [L.H.D.].) (See MASTER CYLINDER REMOVAL/INSTALLATION [R.H.D.].)
6 | VERIFY DTC TROUBLESHOOTING COMPLETED • Clear the DTC from the memory. (See ON-BOARD DIAGNOSIS [DSC/RSC].) • Is the same DTC present? | Yes | Repeat the inspection from Step 1. If the malfunction occurs again, replace the DSC/RSC HU/CM, then go to the next step. (See DSC/RSC HU/CM REMOVAL/INSTALLATION [L.H.D.].) (See DSC/RSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
No | Go to next step.
7 | VERIFY AFTER REPAIR PROCEDURE • Are any other DTCs present? | Yes | Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DSC/RSC].)
No | DTC troubleshooting completed.