DTC B1153/25 SEAT POSITION AIRBAG SENSOR MALFUNCTION

Transcription

1 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM DTC 1153/25 ST POSITION IRG SNSOR MLUNCTION 05UJ01 CIRCUIT DSCRIPTION The seat position airbag sensor circuit consists of the airbag sensor assy center and the seat position airbag sensor. DTC 1153/25 is recorded when a malfunction is detected in the seat position airbag sensor circuit. DTC No. DTC Detecting Condition Trouble rea 1153/25 WIRING DIGRM When one of the following conditions is met: The airbag sensor assy center detects a line short signal, open signal, short to ground signal, or short to + signal in the seat position airbag sensor circuit. Seat position airbag sensor malfunction irbag sensor assy center malfunction Seat position airbag sensor irbag sensor assy center ront seat inner belt assy LH loor wire No.2 27 ront Seat Inner elt ssy LH O 4 2 LSP 5 12 P 3 LSP C LXUS GX470 RPIR MNUL (RM1058U) uthor : 1274

2 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM INSPCTION PROCDUR 1 CHCK DTC (a) Turn the ignition switch to the ON position, and wait at least for 60 seconds. (b) Clear the DTCs stored in memory (See page 05973). (c) Turn the ignition switch to the LOCK position. (d) Turn the ignition switch to the ON position, and wait for at least 60 seconds. (e) Check the DTCs (See page 05973). : DTC 1153/25 is not output. Codes other than code 1153/25 may be output at this time, but they are not related to this check. DLC3 DTC 1153/25 CG TC c NG GO TO STP 2 US SIMULTION MTHOD TO CHCK 2 CHCK CONNCTORS (a) Turn the ignition switch to LOCK position. (b) Disconnect the negative () terminal cable from the battery, and wait for at least 90 seconds. (c) Check that the connectors are properly connected to the airbag sensor assy center, seat position airbag sensor and front seat inner belt assy LH. : The connectors are properly connected. If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection. (d) Disconnect the connectors from the airbag sensor assy center, seat position airbag sensor and front seat inner belt assy LH. (e) Check that the terminals of the connectors are not damaged. : The terminals are not deformed or damaged. NG RPLC WIR HRNSS OR CONNCTORS 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1275

3 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM 3 CHCK ST POSITION IRG SNSOR CIRCUIT (OPN) Connector Service WIre Connector 27 (a) Using a service wire, connect 274 () and 273 (LSP) of connector. NOTIC: Do not forcibly insert a service wire into the terminals of the connector when connecting. (b) Measure the resistance between the terminals of connector according to the value(s) in the table below. 1 2 lways elow 1 Ω LSP C NG GO TO STP 10 4 CHCK ST POSITION IRG SNSOR CIRCUIT (SHORT TO GROUND) (a) Disconnect the service wire from connector. (b) Measure the resistance according to the value(s) in the table below. 1 ody ground lways 1 MΩ or higher 2 ody ground lways 1 MΩ or higher Connector c NG GO TO STP LXUS GX470 RPIR MNUL (RM1058U) uthor : 1276

4 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM CHCK ST POSITION IRG SNSOR CIRCUIT (SHORT) (a) Measure the resistance according to the value(s) in the table below. 1 2 lways 1 MΩ or higher Connector c NG GO TO STP 12 6 CHCK ST POSITION IRG SNSOR CIRCUIT (SHORT TO +) (a) (b) (c) (d) Deactivate the LXUS link system (See page 05973). Connect 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 table below. Standard voltage: 1 ody ground Ignition switch ON elow 1 V 2 ody ground Ignition switch ON elow 1 V Connector c NG GO TO STP LXUS GX470 RPIR MNUL (RM1058U) uthor : 1277

5 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM 7 CHCK ST POSITION IRG SNSOR CG DLC3 TC DTC 1153/25 c (a) Turn the ignition switch to the LOCK position. (b) Disconnect the negative () terminal cable from the battery, and wait for at least 90 seconds. (c) Connect the connectors to the seat position airbag sensor and the airbag sensor assy center. (d) Connect the negative () terminal cable to the battery, and wait for at least 2 seconds. (e) Turn the ignition switch to the ON position, and wait for at least 60 seconds. (f) Clear the DTCs stored in memory (See page 05973). (g) Turn the ignition switch to the LOCK position. (h) Turn the ignition switch to the ON position, and wait for at least 60 seconds. (i) Check the DTCs (See page 05973). : DTC 1153/25 is not output. Codes other than code 1153/25 may be output at this time, but they are not related to this check. NG GO TO STP 8 US SIMULTION MTHOD TO CHCK 8 RPLC ST POSITION IRG SNSOR (a) Turn the ignition switch to the LOCK position. (b) Disconnect the negative () terminal cable from the battery, and wait for at least 90 seconds. (c) Replace the seat position airbag sensor (See page 6061) Perform the inspection using parts from a normal vehicle if possible. NXT 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1278

6 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM CHCK IRG SNSOR SSY CNTR DLC3 DTC 1153/25 (a) Connect the negative () terminal cable to the battery, and wait for at least 2 seconds. (b) Turn the ignition switch to the ON position, and wait for at least 60 seconds. (c) Clear the DTCs stored in memory (See page 05973). (d) Turn the ignition switch to the LOCK position. (e) Turn the ignition switch to the ON position, and wait for at least 60 seconds. (f) Check the DTCs (See page 05973). : DTC 1153/25 is not output. Codes other than code 1153/25 may be output at this time, but they are not related to this check. CG TC c NG RPLC IRG SNSOR SSY CNTR (S PG 6052) 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1279

7 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM 10 CHCK LOOR WIR NO.2 (OPN) ront Seat Inner elt ssy LH loor Wire No.2 (a) Disconnect the front seat inner belt assy LH connector from the floor wire No.2 connector. The service wire has already been inserted into connector. (b) Measure the resistance according to the value(s) in the table below. 126 () 125 (LSP) lways elow 1 Ω Connector C Connector 12 Service Wire 27 LSP C NG RPLC LOOR WIR NO.2 RPLC RONT ST INNR LT SSY LH 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1280

8 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM CHCK LOOR WIR NO.2 (SHORT TO GROUND) ront Seat Inner elt ssy LH LSP loor Wire No.2 Connector C 12 (a) (b) Disconnect the front seat inner belt assy LH connector from the floor wire No.2 connector. Measure the resistance according to the value(s) in the table below. 126 () ody ground 125 (LSP) ody ground lways lways 1 MΩ or higher 1 MΩ or higher c NG RPLC LOOR WIR NO.2 RPLC RONT ST INNR LT SSY LH 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1281

9 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM 12 CHCK LOOR WIR NO.2 (SHORT) ront Seat Inner elt ssy LH LSP loor Wire No.2 Connector C 12 (a) (b) Disconnect the front seat inner belt assy LH connector from the floor wire No.2 connector. Measure the resistance according to the value(s) in the table below. 126 () 125 (LSP) lways 1 MΩ or higher c NG RPLC LOOR WIR NO.2 RPLC RONT ST INNR LT SSY LH 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1282

10 DIGNOSTICS SUPPLMNTL RSTRINT SYSTM CHCK LOOR WIR NO.2 (SHORT TO +) ront Seat Inner elt ssy LH LSP loor Wire No.2 Connector C 12 (a) (b) (c) (d) (e) (f) Turn the ignition switch to the LOCK position. Disconnect the negative () terminal cable from the battery, and wait for at least 90 seconds. Disconnect the front seat inner belt assy LH connector from the floor wire No.2 connector. Connect 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 table below. Standard voltage: 126 () ody ground 125 (LSP) ody ground Ignition switch ON Ignition switch ON elow 1 V elow 1 V c NG RPLC LOOR WIR NO.2 RPLC RONT ST INNR LT SSY LH 2004 LXUS GX470 RPIR MNUL (RM1058U) uthor : 1283