137 T 1651/33 Manual ut off Switch Trouble ESRIPTION The airbag cut-off switch circuit consists of the center airbag sensor assembly and the airbag cut off switch. T 1651/33 is set when a malfunction is detected in the airbag cut off switch circuit. T No. T etecting onditions Trouble reas 1651/31 The center airbag sensor assembly receives a line short circuit signal, an open circuit signal, a short circuit to signal or a short circuit to + signal in the airbag cut off switch circuit for 2 seconds irbag cut off switch malfunction enter airbag sensor assembly malfunction Instrument panel wire irbag cut-off switch enter airbag sensor assembly WIRI IGRM PM+ 1 L 11 2 G 12 PM- 20 irbag ut-off Switch enter irbag Sensor ssembly H100906E03 UTION: In order to prevent unexpected airbag deployment, disconnect the following connectors before inspecting parts such as wire harnesses, if the application of tester probes to the center airbag sensor assembly connector is necessary. isconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. isconnect the connectors from the center airbag sensor assembly. (d) isconnect the connectors from the steering pad.
138 (e) isconnect the connector from the front passenger airbag assembly. (j) isconnect the connector from the front seat outer belt assembly LH. (k) isconnect the connector from the front seat outer belt assembly RH. HINT: Skip the following steps if side and curtain shield airbags are not fitted. (f) isconnect the connector from the front seat airbag assembly LH. (g) isconnect the connector from the front seat airbag assembly RH. (h) isconnect the connector from the curtain shield airbag assembly LH. (i) isconnect the connector from the curtain shield airbag assembly RH. 1 HEK T irbag ut-off Switch enter airbag sensor assembly (d) (e) Turn the ignition switch to the ON position. lear any Ts stored in the memory (See page - 34). Turn the ignition switch to the ON position and wait for at least 60 seconds. heck for Ts (See page -34). : T 1651/33 is not output. HINT: Ts other than 1651/33 may be output at this time, but they are not related to this check. L3 T 1651/33 USE SIMULTION METHO TO HEK G T H101852E01 2 HEK ONNETION OF ONNETO isconnect 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 airbag cut off switch. : The connectors are properly connected. ONNETION OF ONNETO
139 3 HEK ONNETO heck that the connectors (on the center airbag sensor assembly side and airbag cut-off switch side) are not damaged (See page IN-34). REPIR OR REPLE HRNESS 4 INSPET IRG UT-OFF SWITH isconnect the 20 airbag cut-off switch connector. Measure the resistance. Switch ondition Tester ondition Specified ondition OFF 1(PM+) - 2(PM-) 80 to 120 Ω UTO 1(PM+) - 2(PM-) 320 to 480 Ω REPLE IRG UT-OFF SWITH PM+ PM- H046215E01
140 5 HEK INSTRUMENT PNEL (FOR OPEN) irbag ut-off Switch 20 enter irbag Sensor ssembly isconnect the instrument panel wire connector from the airbag cut off switch. Using a service wire, connect 20-1 (PM+) and 20-2 (PM-) of connector. NOTIE: o not forcibly insert the service wire into the terminals of the connector when connecting. Measure the resistance. Tester onnection ondition Specified ondition -11 () - -12 () lways elow 1Ω REPIR OR REPLE INSTRUMENT PNEL Service Wire H100193E03 6 HEK INSTRUMENT PNEL (FOR SHORT) isconnect the service wire from connector. Measure the resistance. irbag ut-off Switch Tester onnection ondition Specified ondition -11 () - -12 () lways 1 MΩ or Higher enter irbag Sensor ssembly REPIR OR REPLE INSTRUMENT PNEL H100192E01
141 7 HEK INSTRUMENT PNEL (TO +) irbag ut-off Switch 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. Standard voltage Tester onnection ondition Specified ondition -11 () - ody Ignition switch ON elow 1 V -12 () - ody Ignition switch ON elow 1 V REPIR OR REPLE INSTRUMENT PNEL H100192E01 8 HEK INSTRUMENT PNEL (TO GROUN) irbag ut-off Switch enter irbag Sensor ssembly isconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. Measure the resistance. Tester onnection ondition Specified ondition -11 () - ody lways 1 MΩ or Higher -12 () - ody lways 1 MΩ or Higher REPIR OR REPLE INSTRUMENT PNEL H100192E01
142 9 HEK ENTER IRG SENSOR SSEMLY irbag ut-off Switch L3 G T enter airbag sensor assembly T 1651/33 (d) (e) (f) (g) onnect the connectors to the center airbag sensor assembly and airbag cut off switch. onnect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. Turn the ignition switch to the ON position, and wait for at least 60 seconds. lear any Ts stored in the memory (See page - 34). Turn the ignition switch to the ON position, and wait for at least 60 seconds. heck for Ts (See page -34). : T 1651/33 is not output. HINT: Ts other than 1651/33 may be output at this time, but they are not related to this check. REPLE ENTER IRG SENSOR SSEMLY H101852E01 USE SIMULTION METHO TO HEK