PINPOINT TEST G207085p25

PINPOINT TEST G207085p25 : DTC B1891, B1892: FLASH CODE 53: AUDIBLE WARNING CIRCUIT MALFUNCTION

G207085t146 : CHECK THE AUDIBLE WARNING CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the battery negative terminal.
2. Wait one minute for the system to become safe.
3. Disconnect the RCM electrical connector, CR86.
4. Disconnect the instrument cluster electrical connector, IP05.
5. Measure the resistance between CR86, pin 22 (YR) and IP05, pin 08 (YR).

- Is the resistance greater than 5 ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G207085t147.

G207085t147 : CHECK THE AUDIBLE WARNING CIRCUIT FOR SHORT TO GROUND
1. Reconnect the battery negative terminal.
2. Measure the resistance between CR86, pin 22 (YR) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G207085t148.

G207085t148 : CHECK THE AUDIBLE WARNING CIRCUIT FOR SHORT TO HIGH VOLTAGE
1. Measure the voltage between CR86, pin 22 (YR) and GROUND.

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
Contact dealer technical support for advice on possible RCM failure.