Do not go by the external appearance of the relays for replacement or ID purposes. It will only get you into trouble. Go by the relay diagram.
I have had instances where the relay was OK but there was a poor connection between the relay and the socket connectors (melted a headlight relay socket once). Perhaps when you were pulling and pushing the relays around, a poor connection got better. Just be aware the relay sockets and relays are a weak point in this vintage Volvo's electrics and check there first before spending any $$$.
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Bob Kraushaar '94 945T, '88 240, '84 242Ti, '88 300 TE, '89 560 SL, '68 Shelby GT-500 KR
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