192 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM DT B1153/25 ircuit Malfunction DESRIPTION The seat position airbag sensor circuit consists of the center airbag sensor assembly and the seat position airbag sensor. DT B1153/25 is recorded when a malfunction is detected in the seat position airbag sensor circuit. DT No. DT Detecting ondition Trouble rea B1153/25 When one of the following conditions is met: The center airbag sensor assembly detects a line short signal, open signal, short to ground signal, or short to B+ signal in the seat position airbag sensor circuit. Seat position airbag sensor malfunction enter airbag sensor assembly malfunction Seat position airbag sensor enter airbag sensor assembly ront seat inner belt assembly LH loor wire No. 2 WIRI DIGRM 1 6 3 4 31 30 (*2) (*1) 2 5 8 3 31 30 (*2) (*1) ront Seat Inner Belt ssembly LH enter irbag *1: with Side and urtain Shield irbag *2: without Side and urtain Shield irbag 145320E01
SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 193 INSPETION PROEDURE 1 HEK DT D DL3 enter irbag DT B1153/25 (d) (e) lear the DTs stored in memory (See page -35). Turn the ignition switch to the L position. heck the DTs (See page -35). : DT B1153/25 is not output. odes other than code B1153/25 may be output at this time, but they are not related to this check. Go to step 2 G T 145326E01 USE SIMULTION METHOD TO HEK 2 HEK ONNETO (d) (e) Turn the ignition switch to the L position. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. heck that the connectors are properly connected to the center airbag sensor assembly, seat position airbag sensor and front seat inner belt assembly LH. : The connectors are properly connected. If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection. Disconnect the connectors from the center airbag sensor assembly, seat position airbag sensor and front seat inner belt assembly LH. heck that the terminals of the connectors are not damaged. : The terminals are not deformed or damaged.
194 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM REPLE WIRE HRNESS 3 HEK SET POSITION IRBG SENSOR IRUIT (OPEN) E D B enter irbag Using a service wire, connect terminals and LSPof connector B. NOTIE: Do not forcibly insert a service wire into the terminals of the connector when connecting. Measure the resistance between the terminals of connector E according to the value(s) in the Tester onnection ondition Specified ondition 1-2 lways Below 1 Ω onnector E onnector B *1: with Side and curtain shield airbag *2: without Side and curtain shield airbag 30 (*1) Go to step 10 Service Wire onnector B Service Wire 31 (*2) 145329E01
SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 195 4 HEK SET POSITION IRBG SENSOR IRUIT (SHORT TO GROUND) E D B enter irbag Disconnect the service wire from connector B. Measure the resistance according to the value(s) in the Tester onnection ondition Specified ondition 1 - Body ground lways 1MΩ or higher 2 - Body ground lways 1MΩ or higher Go to step 11 onnector E 145330E01 5 HEK SET POSITION IRBG SENSOR IRUIT (SHORT) E D B enter irbag Measure the resistance according to the value(s) in the Tester onnection ondition Specified ondition 1-2 lways 1MΩ or higher Go to step 12 onnector E 145330E01
196 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 6 HEK SET POSITION IRBG SENSOR IRUIT (SHORT TO B+) E D B enter irbag onnect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the Standard voltage Tester onnection ondition Specified ondition 1 - Body ground Ignition switch ON Below 1 V 2 - Body ground Ignition switch ON Below 1 V Go to step 13 onnector E 145330E01 7 HEK SET POSITION IRBG SENSOR D G DL3 T enter irbag DT B1153/25 (d) (e) (f) (g) (h) (i) Turn the ignition switch to the L position. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. onnect the connectors to the seat position airbag sensor and the center airbag sensor assembly. onnect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. lear the DTs stored in memory (See page -35). Turn the ignition switch to the L position. heck the DTs (See page -35). : DT B1153/25 is not output. odes other than code B1153/25 may be output at this time, but they are not related to this check. 145326E01 Go to step 8
SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 197 USE SIMULTION METHOD TO HEK 8 REPLE SET POSITION IRBG SENSOR Turn the ignition switch to the L position. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Replace the seat position airbag sensor. (See page - 443). Perform the inspection using parts from a normal vehicle if possible. NEXT 9 HEK ENTER IRBG SENSOR SSEMBLY DL3 D enter irbag DT B1153/25 (d) (e) (f) onnect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. lear the DTs stored in memory (See page -35). Turn the ignition switch to the L position. heck the DTs (See page -35). : DT B1153/25 is not output. odes other than code B1153/25 may be output at this time, but they are not related to this check. REPLE ENTER IRBG SENSOR SSEMBLY G T 145326E01 END
198 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 10 HEK LOOR WIRE NO. 2 (OPEN) ront Seat Inner Belt ssembly LH E onnector D B loor Wire No. 2 enter irbag onnector B Disconnect the front seat inner belt assembly LH connector from the floor wire No. 2 connector. The service wire has already been inserted into connector B. Measure the resistance of connector according to the value(s) in the Tester onnection ondition Specified ondition -2 () - -4 () lways Below 1 Ω *1: with Side and curtain shield airbag *2: without Side and curtain shield airbag 30 (*1) REPLE LOOR WIRE NO. 2 Service Wire onnector B 31 (*2) Service Wire 145333E01 REPLE RONT SET INNER BELT SSEMBLY LH
SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 199 11 HEK LOOR WIRE NO. 2 (SHORT TO GROUND) ront Seat Inner Belt ssembly LH E D B onnector loor Wire No. 2 enter irbag Disconnect the front seat inner belt assembly LH connector from the floor wire No. 2 connector. Measure the resistance according to the value(s) in the Tester onnection ondition Specified ondition -2 () - Body ground lways 1MΩ or higher -4 () - Body ground lways 1MΩ or higher REPLE LOOR WIRE NO. 2 145334E01 REPLE RONT SET INNER BELT SSEMBLY LH
200 SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 12 HEK LOOR WIRE NO. 2 (SHORT) ront Seat Inner Belt ssembly LH E D B loor Wire No. 2 enter irbag Disconnect the front seat inner belt assembly LH connector from the floor wire No. 2 connector. Measure the resistance according to the value(s) in the Tester onnection ondition Specified ondition -2 () - -4 () lways 1MΩ or higher REPLE LOOR WIRE NO. 2 onnector 145334E01 REPLE RONT SET INNER BELT SSEMBLY LH
SUPPLEMENTL RESTRINT SYSTEM IRBG SYSTEM 201 13 HEK LOOR WIRE NO. 2 (SHORT TO B+) ront Seat Inner Belt ssembly LH E D B loor Wire No. 2 enter irbag (d) (e) (f) Turn the ignition switch to the L position. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Disconnect the front seat inner belt assembly LH connector from the floor wire No. 2 connector. onnect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the Standard voltage onnector Tester onnection ondition Specified ondition -2 () - Body ground Ignition switch ON Below 1 V -4 () - Body ground Ignition switch ON Below 1 V REPLE LOOR WIRE NO. 2 145334E01 REPLE RONT SET INNER BELT SSEMBLY LH