B1857
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Soft top cannot be operated. SID shows message SOFT TOP FAILURE.
Relay 5, #5 Bow Latch Relay. Short to Ground
Fault symptom
Soft top cannot be operated. SID shows message SOFT TOP FAILURE.
Condition
Internal malfunction in relay or ground is missing on pin 5 in relay base.
Diagnostic procedure
The diagnostic trouble code is generated if there is an internal malfunction in the relay or if ground is missing on pin 5 in the relay base.
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Check ground for pin 5 in relay base.
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Try replacing the fifth bow latch relay with, for example, the relay for the right front window.
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Activate the relay with the button for the right front window on the centre console.
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The latch motor should lock or unlock the fifth bow.
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If the fifth bow locks or unlocks, the problem is likely in the latch relay
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Checking wiring harness
Intermittent faults can exist during temporary short circuits and open circuits. Wiggle the wiring harness at several points and in different directions to discover problems in the wiring harness and connectors. Observe the multimeter, diagnostic tool or the test lamp during checking.
