Honda Civic. Manual — part 97

TROUBLESHOOTING ).

4. Check for PGM-FI, Body Electrical, and SRS DTCs with the HDS.

Are there any PGM-FI Body Electrical, or SRS DTCs?

YES -Go to the indicated DTC's troubleshooting.

NO -Go to step 5.

5. Do the gauge control module self-diagnostic function (see CIRCUIT

DIAGRAM - DASH LIGHTS BRIGHTNESS CONTROLLER ).

Does the SRS indicator come on?

YES -Faulty SRS unit; replace the SRS unit (see SELF-DIAGNOSTIC
FUNCTION ).

NO -Faulty gauge control module (tach); replace the gauge control module
(tach) (see TACHOMETER ).

SRS INDICATOR STAYS ON, BUT NO DTCS ARE STORED

1. Turn the ignition switch ON (II), and see if the malfunction indicator lamp

(MIL) come on.

Does the MIL come on?

YES -Check for a PGM-FI System DTC troubleshoot as necessary:

R18A1 engine (see GENERAL TROUBLESHOOTING
INFORMATION )

K20Z3 engine (see GENERAL TROUBLESHOOTING
INFORMATION )

NOTE:

Before doing this troubleshooting procedure, check the
battery condition (see BATTERY TEST ). If the battery
voltage is high or low, SRS indicator stays on.

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

NO -Go to step 2.

2. Connect the HDS to the data link connector (DLC) (see CLEAR THE DTC

MEMORY WITH THE HDS).

3. Make sure the HDS communicates with the vehicle and the SRS unit. If it does

not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT
TROUBLESHOOTING ).

4. Select Body Electrical Status with the HDS.
5. Check for DTCs in the Gauge Menu with the HDS.

Is DTC B1187 indicated?

YES -Go to the DTC B1187 troubleshooting (see DTC B1168: GAUGE
CONTROL MODULE LOST COMMUNICATION WITH ECM/PCM
(ENGINE MESSAGES); DTC B1169: GAUGE CONTROL MODULE
LOST COMMUNICATION WITH THE PCM (A/T MESSAGES); DTC
B1170: GAUGE CONTROL MODULE LOST COMMUNICATION
WITH THE ABS/VSA MODULATOR-CONTROL UNIT ( ).

NO -Faulty gauge control module (tach); replace the gauge control module
(tach) (see TACHOMETER ).

SIDE AIRBAG CUTOFF INDICATOR STAYS ON

1. Make sure nothing is on the front passenger's seat.
2. Make sure the seat-back is dry.
3. Turn the ignition switch ON (II), and see if the SRS indicator comes on.

Does the SRS indicator come on?

YES -Go to the Symptom Troubleshooting "SRS INDICATOR STAYS ON."

NO -Go to step 2.

4. Connect the HDS to the data link connector (DLC) (see CLEAR THE DTC

MEMORY WITH THE HDS).

5. Make sure the HDS communicates with the vehicle and the SRS unit. If it does

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

not troubleshoot the DLC circuit (see DLC CIRCUIT
TROUBLESHOOTING ).

6. Select Body Electrical Status with the HDS.
7. Check for DTCs in the Gauge Menu with the HDS.

Is DTC B1187 indicated?

YES -Go to the DTC B1187 troubleshooting (see DTC B1168: GAUGE
CONTROL MODULE LOST COMMUNICATION WITH ECM/PCM
(ENGINE MESSAGES); DTC B1169: GAUGE CONTROL MODULE
LOST COMMUNICATION WITH THE PCM (A/T MESSAGES); DTC
B1170: GAUGE CONTROL MODULE LOST COMMUNICATION
WITH THE ABS/VSA MODULATOR-CONTROL UNIT ( ).

NO -Go to step 8.

8. Do the gauge control module self-diagnostic function (see SELF-

DIAGNOSTIC FUNCTION ).

Does the side airbag cutoff indicator flashing?

YES -Initialize the ODS unit (see ODS UNIT INITIALIZATION). If
problem is still present, replace the OPDS sensor/seat-back (see FRONT
SEAT-BACK COVER REPLACEMENT ).

NO -Faulty gauge control module (tach); replace the gauge control module
(tach) (see GAUGE CONTROL MODULE (TACH) INPUT TEST ).

SIDE AIRBAG CUTOFF INDICATOR DOES NOT COME ON

1. Turn the ignition switch OFF, then wait for 10 seconds.
2. Turn the ignition switch ON (II), and check that the side airbag cutoff indicator

comes on for about 6 seconds.

NOTE:

If the SRS indicator also stays on, go to SRS indicator stays
on, but no DTCs are stored (see SRS INDICATOR DOES
NOT COME ON).

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

Does the side airbag cutoff indicator come on?

YES -Intermittent failure, the system is OK at this time.

NO -Go to step 3.

3. Connect the HDS to the data link connector (DLC) (see CLEAR THE DTC

MEMORY WITH THE HDS).

4. Make sure the HDS communicates with the vehicle and the SRS unit. If it does

not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT
TROUBLESHOOTING ).

5. Do the gauge control module self-diagnostic function (see SELF-

DIAGNOSTIC FUNCTION ).

Does the side airbag cutoff indicator come on?

YES -Faulty SRS unit; replace the SRS unit (see SRS UNIT
REPLACEMENT).

NO -Faulty gauge control module (tach); replace the gauge control module
(tach) (see TACHOMETER ).

PASSENGER'S AIRBAG CUTOFF INDICATOR STAYS ON OR COMES ON SUDDENLY

No one is sitting the front passenger's seat, but there is an object on the seat
more than 5 kg (11 lbs).

The seat belt is buckled, but no one is sitting on the front passenger's seat.

Someone who is less than 30 kg (66 lbs) is sitting on the front passenger's seat.

Someone who is more than 30 kg (66 lbs) but is supporting some of their body
weight on their legs, feet, arms, or hands.

1. Check for these items, then recheck the passenger's airbag cutoff indicator.

The front passenger's seat is/was installed correctly.

NOTE:

Under the following conditions, the passenger's airbag
cutoff indicator stays on or comes on suddenly.

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)