B1416
DTC B1416: Front Impact Sensor (LH) System for Fault 1CAUTION: If DTC B1406 or B1416 is set in the SRS-ECU, always diagnose the CAN main bus line.
DTC SET CONDITIONS
These DTCs are set if the following conditions are detected from the analog G-sensor inside the side impact sensor output:
- Analog G-sensor is not operating.
- Analog G-sensor characteristics are abnormal.
- Analog G-sensor output is abnormal.
TROUBLESHOOTING HINTS
Malfunction of front impact sensor (RH) (for DTC B1406) and front impact sensor (LH) (for DTC B1416)
DIAGNOSIS
Required Special Tool:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991827: MUT-III USB Cable
- MB991910: MUT-III Main Harness A (Vehicles with CAN communication system)
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958. Refer to "How to connect the scan tool." Reading Diagnostic Trouble Codes
2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
YES: Go to Step 2.
NO: Repair the CAN bus line (Refer to Diagnosis). Component Tests and General Diagnostics
STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to the "ON" position.
3. Check if the DTC is set.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES: Go to Step 3.
NO: There is an intermittent malfunction such as poor engaged connector(s) or open circuit (Refer to How to Cope with Intermittent Malfunction).
STEP 3. Check the front impact sensor. (Using scan tool MB991958, read the diagnostic trouble code.)
Replace front impact sensor (RH) and front impact sensor (LH) (for DTC B1416).
Check the diagnostic trouble code.
Q: Is either DTC B1406 or B1416 set?
YES: Replace the SRS-ECU.
NO: The procedure is complete.