DTC C1280, C1282, C1516, C1950, C2770 [DSC/RSC]

id0402b3902400

DTC | C1280, C1282, C1516, C1950, C2770 | SAS control module system
DETECTION CONDITION | • C1280 ― Specified signal from SAS control module (yaw rate part) has not output. • C1282 ― Specified signal from SAS control module (lateral-G part) has not output. • C1516 ― Specified signal from SAS control module (roll rate part) has not output. • C1950 ― The signals from the yaw rate sensor and the Low-G (XY) sensor (lateral-G) do not change at 42 ms or more. ― The signals from the roll rate sensor and the Low-G (XY) sensor (longitudinal-G) do not change at 42 ms or more. • C2770 ― Specified signal from SAS control module (longitudinal-G part) has not output.
POSSIBLE CAUSE | • SAS control module malfunction • Open or short circuit in the CAN2_L wiring harness between SAS control module terminal 2D and DSC/RSC HU/CM terminal M • Open or short circuit in the CAN2_H wiring harness between SAS control module terminal 2H and DSC/RSC HU/CM terminal P • DSC/RSC HU/CM malfunction • Poor connection at connectors (female terminal)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT SAS CONTROL MODULE MALFUNCTION • Turn the ignition switch off. • Using the M-MDS, perform the DTC inspection for the SAS control module. (See DTC DISPLAY.) • Are any DTCs detected? | Yes | Go to applicable DTC inspection. (See DTC TABLE.)
No | Go to the next step.
2 | INSPECT SAS CONTROL MODULE SIGNAL (CAN2 LINE) FOR OPEN CIRCUIT • Disconnect the DSC/RSC HU/CM connectors. • Disconnect the SAS control module connectors. • Inspect for continuity between the DSC/RSC HU/CM connectors (vehicle harness-side) and the following SAS control module connector terminals (vehicle harness-side): ― SAS control module (CAN2_L): 2D—M ― SAS control module (CAN2_H): 2H—P • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 4.
3 | INSPECT SAS control module SIGNAL (CAN2 LINE) FOR SHORT CIRCUIT • Inspect for continuity between the following DSC/RSC HU/CM connector terminals (vehicle harness-side) and body ground: ― DSC/RSC HU/CM (CAN2_L): M ― DSC/RSC HU/CM (CAN2_H): P • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 4.
No | Go to the next step.
4 | VERIFY DTC TROUBLESHOOTING COMPLETED. • Clear the DTC from the memory. (See ON-BOARD DIAGNOSIS [DSC/RSC].) • Are the same DTCs present? | Yes | Repeat the inspection from Step 1. If the malfunction recurs, 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 the next step.
5 | 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.