Test 10AB8

TEST 10AB8: CHECK SUPPLY VOLTAGE AT VALVE RELAY CONTACT POINT
1) Disconnect connector (F8) from relay box.
2) Measure voltage between relay box connector and chassis ground.
Connector & terminal: (F8) No. 1 (+) & Chassis ground (-)
CHECK: Is the voltage between 10 and 13 Volts?
YES: Test 10AB9
NO: Repair harness connector between battery and relay box, and check fuse No. 19.