56-27

SRS DTC Troubleshooting: 56-26, 56-27

DTC 56-26, 56-27: Undefined Data Received From the Gauge Control Module

NOTE:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information. Initial Inspection and Diagnostic Overview

- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software, SRS Unit Update and retest.

1. Check for any F-CAN and B-CAN communication DTCs with the HDS.

Are there any communication DTCs?
YES - Go the the appropriate DTC troubleshooting.

NO - Go to step 2.


2. Clear the DTC memory. Initial Inspection and Diagnostic Overview

3. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, then wait for 10 seconds.

4. Read the DTC. Initial Inspection and Diagnostic Overview

Is DTC 56-26 or 56-27 indicated?
YES - Faulty gauge control module. Do the gauge control module self-diagnostic function. Reading and Clearing Diagnostic Trouble Codes If the gauge control module fails the self-diagnostic, replace the gauge control module, Service and Repair then clear the DTC. If the DTC is still present, replace the SRS unit. SRS Unit Replacement

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, troubleshoot the DTC.