MAZDA MX-5 1994 Workshop Manual

SRS AIR BAG SYSTEM Step 6 1. Disconnect the S-sensor connector. 2. Check for continuity between terminal 1 H (GIB) of the diagnostic module connector and ground. I No I Replace wiring harness I Continuity Yes Action Replace S-sensor (Refer to page T-213) Gartner Banana

SRS AIR BAG SYSTEM L Possible cause Defective air bag module(s) Defective clock spring Defective S-sensor Defective D-sensor Defective diagnostic Defective wiring harness Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Service Code 13 Flowchart No.3 Step 2 1. Connect the negative battery cable. 2. Turn the ignition switch ON and check the service code. Symptom Step 3 Service code 13 Other Warning Handling the air bag module improperly can acci- dently deploy the air bag, which may seriously in- jure you. Read SERVICE WARNINGS, page T-159, before handling the air bag module. Action Go to Step 5 Go to Step 3 1. Turn the ignition switch to LOCK. 2. Disconnect the negative battery cable. 3. Remove the driver-side air bag module. (Refer to page T-206.) 4. Connect the blue and orange clock spring connectors. 5. Connect the negative battery cable. 6. Turn the ignition switch to ON and check the service code. I Service code I Action 1 13 Other Replace combination switch (Refer to page T-19) Go to step 4 Gartner Banana

T SRS AIR BAG SYSTEM Step 4 1. Turn the ignition switch to LOCK. 2. Disconnect the negative battery cable. 3. Connect the blue and orange passenger-side air bag d module connectors. 4. Connect the negative battery cable. 5. Turn the ignition switch to ON and check the service code. I Service code I Action I I 13 Replace passenger-side air bag module (Refer to page T-207) I I mer I Replace driver-side air bag module (Refer to ~aae T-2061 I No I Go to Step 6 Step 5 1. Turn the ignition switch to LOCK. 2. Disconnect the diagnostic module connectors. 3. Check for continuity between terminal 2F (GY) of the diagnostic module connector and ground. Step 6 Check for continuity between terminal 2G (GN) of the diagnostic module connector and ground. I Continuity Action d Continuity Yes Step 7 Check for continuity between terminal 20 (GNV) of the diagnostic module connector and ground. Action Replace wiring harness Yes No Replace wiring harness Go to Step 7 I NO I GO to Step 9 ~d Continuity Yes Action Go to Step 8 Gartner Banana

SRS AIR BAG SYSTEM Step 8 1. Disconnect the orange and blue S-sensor connectors. 2. Check for continuity between terminal C of the S-sensor and ground. Continuity Action 1 Yes No Step 10 1. Disconnect the suspect sensor connector. 2. Measure the resistance between terminal A of the sen- sor and ground. Replace S-sensor (Refer to page T-213) Replace wiring harness Step 9 Measure the resistance between terminal 1 C (BRIG), 1 A (BRIR), and 2L (BRIB) of the diagnostic module connec- tor and ground. Resistance k&2 Other Other I Replace sensor I Action Replace diagnostic module (Refer to page T-208) Suspect sensor: Terminal 1 C -+ right D-sensor Terminal 1 A -+ Center D-sensor Terminal 2L -+ left D-sensor Go to Step 10 Measure 1.18 kn Action Replace wiring harness Gartner Banana

T SRS AIR BAG SYSTEM Possible cause i/ Defective S-sensor Defective wiring harness Defective diagnostic module Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Service Code 21 Flowchart No.4 Step 2 1. Disconnect the diagnostic module connector. 2. Check for continuity between terminal 1 E (RIB) of the Symptom connector and ground. Step 3 1. -Disconnect the orange and blue S-sensor connector. 2. Check for continuity between terminal A of the S-sensor and ground. I Continuity I Action Continuity Yes No Action Replace diagnostic module (Refer to page T-208) Go to Step 3 Yes No Replace wiring harness Replace S-sensor (Refer to page T-213) Gartner Banana

SRS AIR BAG SYSTEM T Flowchart N0.5 I Symptom I Service Code 22 Possible cause Defective wiring harness Defective S-sensor Defective diagnostic module Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Step 2 1. Disconnect the diagnostic module connector. 2. Check for continuity between terminal 1 H (GIB) and 2D (GMI) of the diagnostic module connector. Continuity Yes Step 3 1. Disconnect the orange and blue S-sensor connectors. 2. Check for continuity between terminal B and D of the S- sensor. Continuity I Action I Action Go to Step 3 I No Replace diagnostic module (Refer to page T-208) Yes No Replace S-sensor (Refer to page T-213) Replace wiring harness Gartner Banana

T SRS AIR BAG SYSTEM Possible cause Defective wiring harness Defective S-sensor Defective diagnostic module Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Service Code 23 Flowchart No.6 Step 2 1. Disconnect the diagnostic module connector. 2. Check for continuity between terminal 1 H (GIB) and 2C (G) of the diagnostic module connector. Symptom I No Go to Step 3 Continuity Yes Step 3 1. Disconnect orange and blue S-sensor connectors. 2. Check for continuity between terminal B and E of the S- sensor. Action Replace diagnostic module (Refer to pane T-208) No I Replace S-sensor (Refer to page T-213) I Continuity Yes Action Replace wiring harness Gartner Banana

SRS AIR BAG SYSTEM T i/ Possible cause Open circuit in wiring harness Damaged diagnostic module Flowchart No.7 Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Step 2 1. Disconnect the diagnostic module connector. 2. Check for continuity between terminal 2B (GNV) and 20 (GNV) of the diagnostic module connector. Symptom Continuity Action I Service Code 24 I Yes Replace diagnostic module (Refer to Daae T-208) - -- No I Replace wiring harness Gartner Banana

T SRS AIR BAG SYSTEM I Flowchart No.8 I Symptom I Service Code 32 I Possible cause a Defective driver-side air bag module a Defective clock spring Defective wiring harness a Defective diagnostic module Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Step 2 1. Install a jumper wire between terminals B and C of the clock spring connector. 2. Connect the negative battery cable. 3. Turn the ignition switch to ON and check the service code. I Other I Go to Step 3 I Service code 32 Step 3 Action Go to Step 4 Warning -- a Handling the air bag module improperly can acci- dently deploy the air bag, which may seriously in- jure you. Read SERVICE WARNINGS, page T-159, before handling the air bag module. Turn the ignition switch to LOCK. Disconnect the negative battery cable. Remove the driver-side air bag module. (Refer to page T-206.) Remove the jumper wire from the clock spring connector and connect the clock spring connector. Install a jumper wire between terminals B and C of the driver-side air bag module connector. Connect the negative battery cable. Turn the ignition switch to ON and check the service code. I Service code Action I 32 Replace combination switch (Refer to page T-19) Other Replace driver-side air bag module (Refer to page T-206) Gartner Banana

SRS AIR BAG SYSTEM T step 4 1. Turn the ignition switch to LOCK. 2. Disconnect the negative battery cable. 3. Disconnect the diagnostic module connector. 4. Check for continuity between terminals 2D (GMI) and 2F (GY) of the diagnostic module connector. Action 45UOTX-301 Gartner Banana