172 SUPPLMNTL RSTRINT SYSTM IRG SYSTM DT 1150/23 lassification System Malfunction DSRIPTION The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification U. If the center airbag sensor assembly receives signals from the occupant classification U, it determines whether or not the front passenger airbag assembly and the front seat airbag assembly RH should be operated. DT 1150/23 is recorded when a malfunction is detected in the occupant classification system circuit. DT No. DT Detecting ondition Trouble rea 1150/23 The center airbag sensor assembly receives a line short signal, open signal, short to signal or + short signal in the occupant classification system circuit for 2 seconds. classification U malfunction enter airbag sensor assembly malfunction classification U enter airbag sensor assembly loor wire Seat wire No. 1 WIRI DIGRM lassification U enter irbag Sensor ssembly 8 1 l1 1 33 3 34 (*1) (*2) 4 4 l1 2 33 10 34 (*1) (*2) *1: with Side and urtain Shield irbag *2: without Side and urtain Shield irbag 11631202 INSPTION PRODUR 1 HK DT (OUPNT LSSIITION U) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
SUPPLMNTL RSTRINT SYSTM IRG SYSTM 173 Using the intelligent tester, check the DTs of the occupant classification U (See page -300). : DT is not output. GO TO OUPNT LSSIITION SYSTM 2 HK DT (NTR IRG SNSOR SSMLY) DL3 D lassification U enter irbag Sensor ssembly DT 1150/23 (d) (e) Turn the ignition switch to the ON position, and wait for at least 60 seconds. lear the DTs stored in memory (See page -35). Turn the ignition switch to the L position. Turn the ignition switch to the ON position, and wait for at least 60 seconds. heck the DTs (See page -35). : DT 1150/23 is not output. HINT: odes other than code 1150/23 may be output at this time, but they are not related to this check. G T 11046101 Go to step 3 US SIMULTION MTHOD TO HK 3 HK ONNTION O ONNTO 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 and the occupant classification U. : The connectors are connected. ONNT ONNTO, THN GO TO STP 1
174 SUPPLMNTL RSTRINT SYSTM IRG SYSTM 4 HK OUPNT LSSIITION U IRUIT (SHORT TO GROUND) lassification U D enter irbag Sensor ssembly Disconnect the connectors from the center airbag sensor assembly and the occupant classification U. Tester connection ondition Specified condition -8 () - ody lways -4 () - ody lways Go to step 8 onnector 11046230 5 HK OUPNT LSSIITION U IRUIT (SHORT TO +) lassification U D enter irbag Sensor ssembly 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 Voltage Tester connection ondition Specified condition -8 () - ody Ignition switch ON elow 1 V -4 () - ody Ignition switch ON elow 1 V onnector Go to step 9 11046230
SUPPLMNTL RSTRINT SYSTM IRG SYSTM 175 6 HK OUPNT LSSIITION U IRUIT (SHORT) lassification U D enter irbag Sensor ssembly Turn the ignition switch to the L position. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Tester connection ondition Specified condition -8 () - -4 () lways Go to step 10 onnector 11046230
176 SUPPLMNTL RSTRINT SYSTM IRG SYSTM 7 HK OUPNT LSSIITION U IRUIT (OPN) D enter irbag Sensor ssembly lassification U onnector onnector 33 (*1) with Side and curtain shield airbag: Using a service wire, connect 33-1 () and 33-2 () of connector "". without Side and curtain shield airbag: Using a service wire, connect 34-3 () and 34-10 () of connector "". Tester connection ondition Specified condition -8 () - -4 () lways elow 1 Ω Service Wire Go to step 11 1 2 3 4 5 6 7 8 9 101112 *1: with Side and urtain Shield irbag 34 (*2) *2: without Side and urtain Shield irbag Service Wire 11172112
SUPPLMNTL RSTRINT SYSTM IRG SYSTM 177 8 HK LOOR WIR (SHORT TO GROUND) lassification U Seat Wire No. 1 D enter irbag Sensor ssembly Disconnect the floor wire connector from the seat wire No. 1. Tester connection ondition Specified condition l1-1 () - ody lways l1-4 () - ody lways loor Wire onnector RPIR OR RPL LOOR WIR l1 11046419 RPIR OR RPL ST WIR NO. 1
178 SUPPLMNTL RSTRINT SYSTM IRG SYSTM 9 HK LOOR WIR (SHORT TO +) lassification U Seat Wire No. 1 l1 D loor Wire onnector enter irbag Sensor ssembly (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 floor wire connector from the seat wire No. 1. 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 Voltage Tester connection ondition Specified condition l1-1 () - ody Ignition switch ON elow 1 V l1-4 () - ody Ignition switch ON elow 1 V RPIR OR RPL LOOR WIR 11046419 RPIR OR RPL ST WIR NO. 1
SUPPLMNTL RSTRINT SYSTM IRG SYSTM 179 10 HK LOOR WIR (SHORT) lassification U Seat Wire No. 1 D loor Wire enter irbag Sensor ssembly Disconnect the floor wire connector from the seat wire No. 1. Tester connection ondition Specified condition l1-1 () -l1-4 () lways RPIR OR RPL LOOR WIR onnector l1 11046419 RPIR OR RPL ST WIR NO. 1
180 SUPPLMNTL RSTRINT SYSTM IRG SYSTM 11 HK LOOR WIR (OPN) Seat Wire No. 1 D lassification U onnector loor Wire enter irbag Sensor ssembly onnector 33 (*1) Disconnect the floor wire connector from the seat wire No. 1. HINT: The service wire has already been inserted into connector "". Tester connection ondition Specified condition l1-1 () - l1-4 () lways elow 1 Ω l1 Service Wire RPIR OR RPL LOOR WIR *1: with Side and urtain Shield irbag 34 (*2) *2: without Side and urtain Shield irbag Service Wire 11172208 RPIR OR RPL ST WIR NO. 1