Special Tools Required

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

SRS inflator simulator 07SAZ-TB4011A
SRS simulator lead L 070AZ-SNAA300

NOTE:

Before doing this troubleshooting procedure, review PRECAUTIONS AND PROCEDURES , General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ) and 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.

Clear the DTCs with the HDS (see CLEAR THE DTC MEMORY ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for the DTCs with the HDS (see READING THE DTC ).
Is DTC 43-1 x indicated?

YES -
- If DTC 43-11 is indicated, go to step 4.
- If DTC 43-1x except 43-11 is indicated alone, or DTC 43-11 and 45-11 is indicated, faulty left side impact sensor(first); replace the left side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT ), then clear the DTC.
NO - Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES . If another DTC.
Turn the ignition switch to LOCK (0).
Disconnect the negative cable from the battery, then wait at least 3 minutes.
Disconnect the left side impact sensor (first) 4P connector (A) from the left side impact sensor (first), (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT ).

Fig 1: Identifying Floor Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect SRS unit connector B (39P) from the SRS unit (see step 10 under Disconnecting System Connectors ).
Measure the resistance between SRS unit connector B (39P) terminals No. 36 and No. 37. There should be an open circuit or at least 1 M Ω.

Fig 2: Measuring Resistance Between SRS Unit Connector B (39P) Terminals No. 36 & No. 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there an open circuit, or at least 1 MΩ. ?

YES - Go to step 9.

NO - Short to another wire in the floor wire harness; replace the floor wire harness, then clear the DTC.
Measure the resistance between body ground and SRS unit connector B (39P) terminals No. 36 and No. 37, individually.
Is there an open circuit, or at least 1 MΩ. ?

YES - Go to step 10.

NO - Short to ground in the floor wire harness; replace the floor wire harness, then clear the DTC.

Fig 3: Measuring Resistance Between Body Ground & SRS Unit Connector B (39P) Terminals No. 36 & No. 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reconnect the negative cable to the battery.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and SRS unit connector B (39P) terminals No. 36 and No. 37, individually.

Fig 4: Measuring Voltage Between Body Ground & SRS Unit Connector B (39P) Terminals No. 36 & No. 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V?

YES - Go to step 13.

NO - Short to power in the floor wire harness; replace the floor wire harness, then clear the DTC.
Turn the ignition switch to LOCK (0).
Connect the black terminals (A) of SRS simulator lead L to the SRS inflator simulator (jumper connector), and then connect SRS simulator lead L to the left side impact sensor (first) 4P connector (B) on the floor wire harness.

Fig 5: Connecting SRS Inflator Simulator & Black Lead Of Simulator Lead L To Floor 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the resistance between SRS unit connector B (39P) terminals No. 36 and No. 37.
Is there less than 1.0 Ω.?

YES - Faulty left side impact sensor (first) or SRS unit; replace the left side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT ), then clear the DTC. If the problem is still present, replace the SRS Unit (see SRS UNIT REPLACEMENT ). If the DTC is still present; replace the faulty floor wire harness.

NO - Open in the floor wire harness; replace the floor wire harness, then clear the DTC.

Fig 6: Measuring Resistance Between SRS Unit Connector B (39P) Terminals No. 36 & No. 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.