B1259 02

B1259 02, B1259 05

B1259 02: Antenna Circuit, Short to Ground

B1259 05: Antenna Circuit, Open/Short to B+

Fault symptoms

Interference noise or no sound on the satellite radio.

Type of diagnosis

Continuous.

Enable criteria

Radio/CD switched on or ignition on.

Fault criteria

02 Antenna circuit, short circuited to ground.
05 Antenna circuit, open circuit or short circuited to B+.

Diagnostic help

The antenna circuit resistance (cable + antenna) -160 ohm.

Checking the wiring harness

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Check switches, connectors and crimp connections for oxidation, withdrawn pins and pin clamping force.

Fault Diagnosis Procedure