Operation CHARM: Car repair manuals for everyone.

Test 10, Wiring Harness


1. Disconnect TFI module and distributor harness connectors.
2. Measure resistance between terminal 5 of harness connector to distributor and terminal 6 of harness connector to TFI module by inserting a straight pin.
3. If resistance is less than 5 ohms, proceed to Test 11.
4. If resistance is greater than 5 ohms, check wiring between TFI module and distributor (PIP-B circuit) and repair as necessary.