B1032

DTC Troubleshooting: B1032

DTC B1032: MICU Collision Detection Signal (CDS) Input Error

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

1. Clear the DTC with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Check for DTC with the HDS.

Is DTC B1032 indicated?
YES - Go to step 4.

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


4. Turn the ignition switch to LOCK (0).

5. Do the battery terminal disconnection procedure. Procedures

6. Disconnect SRS unit connector A (28P) from the SRS unit. Service and Repair

7. Disconnect driver's under-dash fuse/relay box connector P (30P).

8. Measure the resistance between the No. 21 terminal of SRS unit connector A (28P) and the No. 21 terminal of under-dash fuse/relay box connector P (30P). There should be 0-1.0 Ohms.

Is the resistance as specified?
YES - Go to step 9.

NO - Open in the BLU (YEL) wire of dashboard wire harness; replace dashboard wire harness.






9. Measure the resistance between the No. 21 terminal of SRS unit connector A (28P) and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 10.

NO - Short to ground in dashboard wire harness; replace dashboard wire harness.






10. Measure the voltage between the No. 21 terminal of SRS unit connector A (28P) and body ground. There should be 0.1 V or less.

Is the voltage as specified?
YES - Replace the SRS unit. SRS Unit Replacement

NO - Short to power in dashboard wire harness; replace dashboard wire harness.