Colt Wagon 2WD L4-1468cc 1.5L SOHC (1990)
Automatic Shut Down (ASD) Relay: Testing and Inspection
CAUTION:
a.
When applying battery voltage to the Control Relay, verify power source connections are to the correct terminals. Otherwise, the Control
Relay will be damaged.
b.
The following test procedures should be performed in the order instructed. If not, inaccurate results and damage to the relay may occur.
1.
Disconnect the Control Relay electrical connector, and remove the relay.
MPI Control Relay
Checking the Relay Coils L1 and L2
2.
Using an ohmmeter, check for continuity between the relay terminals # 1 and # 4.
Continuity should NOT exist.
3.
Check for continuity between the relay terminals # 3 and # 5.
Continuity should exist, with approximately 95 ohms.
4.
Check for continuity between the relay terminals # 2 and # 5.
Continuity should exist, with approximately 95 ohms.
5.
Check for continuity between the relay terminals # 6 and # 7.
Continuity should exist, with approximately 35 ohms.
Checking Coils L1 & L2
6.
Energize the relay by connecting a lead wire with alligator clips from the negative terminal of the battery to terminal # 6 of the relay, and a lead
wire with alligator clips from the positive terminal of the battery to terminal # 7 of the relay.
7.
Check for continuity between the relay terminals # 1 and # 4.
Continuity should exist, with no resistance.
Remove the power source connections from the Control Relay.
Checking the Relay Coil L3
8.
Connect the positive lead of the ohmmeter to terminal # 6 and the negative lead to terminal # 8.
Continuity should NOT exist.
9.
Switch the ohmmeter leads to the positive lead connected to terminal # 8 and the negative lead to terminal # 6.
Continuity should exist.
10.
Check for continuity between the relay terminals # 2 and # 4.
Continuity should NOT exist.
