( TL19E00K791000R451XFAAT00 )

DTC Troubleshooting: 45-1x

DTC 45-1x (‘‘x'' can be 0 thru 9 or A thru F):

No Signal From the Left Side Impact Sensor (second)

NOTE:

Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
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 and retest.

Is DTC 45-1x indicated?

YES	-	If DTC 45-11 is indicated, go to Step 4 . If DTC 45-1x except 45-11 is indicated alone, faulty left side impact sensor (second); replace the left side impact sensor (second). ■
NO	-	Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

Measure the resistance between No. 1 and No. 2 terminals of SRS floor wire harness 2P connector. There should be an open circuit or at least 1 MΩ.

Is the resistance as specified?

YES	-	Go to Step 9 .
NO	-	Short in the SRS floor wire harness; replace the SRS floor wire harness.■

Measure the resistance between No. 1 terminal of SRS floor wire harness 2P connector and body ground, and between the No. 2 terminal and body ground. There should be an open circuit or at least 1 MΩ.

Is the resistance as specified?

YES	-	Go to Step 10 .
NO	-	Short to ground in the SRS floor wire harness; replace the SRS floor wire harness.■

Measure the voltage between No. 1 terminal of SRS floor wire harness 2P connector and body ground, and between the No. 2 terminal and body ground. There should be less than 1.0 V.

Is the voltage as specified?

YES	-	Go to Step 13 .
NO	-	Short to power in the SRS floor wire harness; replace the SRS floor wire harness.■

Measure the resistance between the No. 4 terminal of the SRS floor wire harness 4P connector and the No. 1 terminal of the SRS floor wire harness 2P connector, and between the No. 1 terminal of the SRS floor wire harness 4P connector and the No. 2 terminal of the SRS floor wire harness 2P connector. There should be 0−1.0 Ω.

Is the resistance as specified?

YES	-	Faulty left side impact sensor (second) or SRS unit; replace the left side impact sensor (second). If the problem is still present, replace the SRS unit.
NO	-	Open in the SRS floor wire harness; replace the SRS floor wire harness.■