DTC 85-61: No Signal From the ODS Unit; DTC 85-62: Incorrect Data From the ODS Unit

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed ( see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES ), General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ), and 12 Volt Battery Terminal Disconnection and Reconnection (see 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
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 (see SRS UNIT UPDATE ) and retest.

Make sure nothing is on the front passenger's seat.
Clear the DTC memory (see HOW TO CLEAR DTCS ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Read the DTC (see HOW TO RETRIEVE DTCS ).
Is DTC 85-61 or 85-62 indicated?

YES -Go to step 5.

NO -Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures (see TROUBLESHOOTING INTERMITTENT FAILURES ). If another DTC is indicated, troubleshoot the DTC.
Turn the ignition switch to LOCK (0).
Check the No. 8 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?

YES -Go to step 7.

NO -Replace the fuse, then turn the ignition switch to ON (II). If the fuse blows again, check for a short in the No. 8 (7.5 A) fuse circuit (dashboard wire harness, floor wire harness, or ODS unit harness).
Check the connection between the ODS unit harness 18P connector (A) and the ODS unit.

Fig 1: Locating ODS Unit Harness 18P Connector (A) At The ODS Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the connection OK ?

YES -Go to step 8.

NO -Repair the poor connection, then clear the DTC, and retest. If DTC 85-61 or 85-62 is still present, go to step 8.
Disconnect the ODS unit harness 18P connector (A) from the ODS unit.

Fig 2: Identifying ODS Unit Harness 18P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Measure the voltage between ODS unit harness 18P connector terminal No. 1 and body ground. There should be battery voltage.

Fig 3: Measuring Voltage Between ODS Unit Harness 18P Connector Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 11.

NO -Open in the dashboard wire harness, the floor wire harness, or the ODS unit harness; replace the faulty harness, then clear the DTC.
Turn the ignition switch to LOCK (0).
Measure the resistance between ODS unit 18P connector terminal No. 12 and body ground. There should be less than 1.0 Ω.

Fig 4: Measuring Resistance Between ODS Unit 18P Connector Terminal No. 12 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is resistance as specified?

YES -Go to step 1.

NO -Open between ODS unit 18P connector terminal No. 12 and body ground (G601) or poor connection at G601 (see CONNECTOR TO HARNESS INDEX ).
Do the 12 volt battery terminal disconnection procedure (see 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION ), then wait at least 3 minutes.
Disconnect SRS unit connector B (39P) from the SRS unit (see step 10 ).
Measure the resistance between SRS unit connector B (39P) terminal No. 1 and body ground. There should be 1 MΩ.

Fig 5: Measuring Resistance Between SRS Unit Connector B (39P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 16.

NO -Short to ground between SRS unit connector B (39P) terminal No. 1 and ODS unit 18P connector terminal No. 7 (floor wire harness or ODS unit harness); replace the faulty harness, then clear the DTC.
Measure the resistance between SRS unit connector B (39P) terminal No. 1 and ODS unit 18P connector terminal No. 7. There should be less than 1.0 Ω.

Fig 6: Measuring Resistance Between SRS Unit Connector B (39P) Terminal No. 1 And ODS Unit 18P Connector Terminal No. 7
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 17.

NO -Open between SRS unit connector B (39P) terminal No. 1 and ODS unit 18P connector terminal No. 7 (dashboard wire harness, floor wire harness, or ODS unit harness); replace the faulty harness, then clear the DTC.
Do the 12 volt battery terminal reconnection procedure (see 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Measure the voltage between SRS unit connector B (39P) terminal No. 1 and body ground. There should be less than 0.2 V.

Fig 7: Measuring Voltage Between SRS Unit Connector B (39P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES -Go to step 20.

NO -Short to power between SRS unit connector B (39P) terminal No. 1 and ODS unit 18P connector terminal No. 7 (dashboard wire harness, floor wire harness, or ODS unit harness); replace the faulty harness, then clear the DTC.
Replace the ODS unit (see ODS UNIT REPLACEMENT ).
Clear the DTC memory (see HOW TO CLEAR DTCS ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Read the DTC (see HOW TO RETRIEVE DTCS ).
Is DTC 85-61 or 85-62 indicated?

YES -Replace the OPDS sensor (see FRONT SEAT-BACK COVER REPLACEMENT ); if the DTC is still present, replace the SRS unit (see SRS UNIT REPLACEMENT ).

NO -This system is OK.