B1790
Read the instructions below then start the fault diagnostic procedure.
Symptom: The message “SERVICE ANTI-THEFT ALARM” is shown on SID.
| B1790 |
Glass Break Sensor, Front and/or Rear. Internal Fault
Glass Break Sensor, Front and/or Rear. No response
Fault symptoms
The message “SERVICE ANTI-THEFT ALARM” is shown on SID.Conditions
No connection to the glass breakage sensor.Main condition
The diagnostic trouble code is generated if a fault is found during two test cycles in succession. A test cycle lasts one second, i.e. it takes two seconds from when the fault occurs until a diagnostic trouble code is generated. If the fault disappears, the trouble code is deleted from the control module memory after the ignition has been turned on 20 times.Diagnostic trouble codes are not generated if the voltage is below 11 V or over 14 V.
Check wiring harness.
Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostic instrument during the test.This project is supported by memberships and donations. If you use this site, please consider Joining SCNA and/or making a donation.
Our Friends
