Lit. No. 28270, Rev. 00
July 1, 2005
84
SOLENOID COIL TESTS
SOLENOID COIL
ACTIVATION TEST
1. Remove the control from the
14-pin connector.
2. Remove the coil covers.
3. When prompted, check for
magnetic pull across the end of
each solenoid coil using a small
wrench or nonmagnetized
screwdriver.
4. Use the electrical schematic to
locate proper wire color and
valve location.
Replace coil.
Use a jumper wire to connect between terminals 1&9, 2&9, 3&9, 4&9, 5&9,
and 6&9 on the 14-pin connector, jumping one at a time and checking for
magnetic pull as described above. Do coils magnetize?
Go to
Control Test.
YES
NO
Go to
Individual Solenoid Coil Test.
Does coil test OK?
Go to Vehicle Control
Harness –
Solenoid Coils Test.
YES
NO
INDIVIDUAL SOLENOID COIL
TEST
1. Remove both wires from coil
terminals.
2. Attach an ohmmeter across the
coil terminals.
3. A reading of approximately 7
ohms indicates coil is OK.
NOTE: A good coil will draw
approximately 1.5 amps.
4. Attach an ohmmeter to one coil
terminal and to the steel washer
at the end of the coil.
5. A reading of 0 ohms indicates
that the coil has internal shorts
and needs to be replaced.
