85-62
SRS DTC Troubleshooting: 85-61, 85-62
DTC 85-61: No Signal From the ODS Unit
DTC 85-62: Incorrect Data From the ODS Unit
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures, Service and Repair General Troubleshooting Information, Reading and Clearing Diagnostic Trouble Codes and Battery Terminal Disconnection and Reconnection. Procedures
1. Clear the DTC with the HDS. Reading and Clearing Diagnostic Trouble Codes
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes
Is DTC85-61 or 85-62 indicated?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Reading and Clearing Diagnostic Trouble Codes If another DTC is indicated, troubleshoot the DTC.
4. Turn the ignition switch to LOCK (0).
5. Check the No. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 6.
NO - Replace the fuse, then turn the ignition switch to ON (II). If the fuse blows again, check for a short in the No. 12 (7.5 A) fuse circuit (dashboard wire harness, audio wire harness, SRS floor wire harness, or ODS unit harness).
6. Disconnect the ODS unit harness 18P connector (A) from the ODS unit (B).
7. Turn the ignition switch to ON (II).
8. Measure the voltage between ODS unit harness 18P connector terminal No. 1 and body ground. There should be battery voltage.
Is there battery voltage?
YES - Go to step 9.
NO - Open between the No. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box and the ODS unit 18P connector terminal No. 1 (dashboard wire harness, audio wire harness, SRS floor wire harness, or ODS unit harness); replace the faulty harness, then clear the DTC.
9. Turn the ignition switch to LOCK (0).
10. Measure the resistance between ODS unit harness 18P connector terminal No. 12 and body ground. There should be less than 1.0 Ohms.
Is resistance as specified?
YES - Go to step 11.
NO - Open between ODS unit harness 18P connector terminal No 12 and body ground (G702) or poor connection at G702.
11. Disconnect the negative cable from the battery, then wait at least 3 minutes.
12. Disconnect SRS unit connector B (39P) from the SRS unit. Service and Repair
13. Measure the resistance between SRS unit connector B (39P) terminal No. 1 and body ground. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified?
YES - Go to step 14.
NO - Short to ground between SRS unit connector B (39P) terminal No. 1 and ODS unit harness 18P connector terminal No. 7 (SRS floor wire harness or ODS unit harness); replace the faulty harness, then clear the DTC.
14. Measure the resistance between SRS unit connector B (39P) terminal No. 1 and ODS unit harness 18P connector terminal No. 7. There should be less than 1.0 Ohms.
Is the resistance as specified?
YES - Go to step 15.
NO - Open between SRS unit connector B (39P) terminal No. 1 and ODS unit harness 18P connector terminal No. 7 (SRS floor wire harness or ODS unit harness); replace the faulty harness, then clear the DTC.
15. Reconnect the negative cable to the battery.
16. Turn the ignition switch to ON (II).
17. Measure the voltage between SRS unit connector B (39P) terminal No. 1 and body ground. There should be less than 0.2 V.
Is the voltage as specified?
YES - Go to step 18.
NO - Short to power between SRS unit connector B (39P) terminal No. 1 and ODS unit harness 18P connector terminal No. 7 (SRS floor wire harness or ODS unit harness); replace the faulty harness, then clear the DTC.
18. Replace the ODS unit. ODS Unit Replacement
19. Clear the DTC with the HDS. Reading and Clearing Diagnostic Trouble Codes
20. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes
Is DTC 85-61 or 85-62 indicated?
YES - Replace the SRS unit. SRS Unit Replacement
NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Reading and Clearing Diagnostic Trouble Codes If another DTC is indicated, troubleshoot the DTC.