Relay Test

WARNING: This page is about a different car, the 2004 Dodge Grand Caravan, 2004 Dodge Caravan, and 2004 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.

The starter relay is located in the Power Distribution Center (PDC) in the engine compartment. refer to the PDC label for relay identification and location.

Remove the starter relay from the PDC as described and perform the following tests:

A relay in the de-energized position should have continuity between terminals 87A and 30, and no continuity between terminals 87 and 30. If OK, go to Step 2. If not OK, replace the faulty relay.
Resistance between terminals 85 and 86 (electromagnet) should be 75 +/-5 ohms. If OK, go to Step 3. If not OK, replace the faulty relay.
Connect a battery B+ lead to terminals 85 and a ground lead to terminal 86 to energize the relay. The relay should click. Also test for continuity between terminals 30 and 87, and no continuity between terminals 87A and 30. If OK, refer to RELAY CIRCUIT TEST procedure. If not OK, replace the faulty relay.

Fig 1: Identifying Starter Relay Pinout
Courtesy of DAIMLERCHRYSLER CORP.

Fig 2: Identifying Starter Relay Pinout
Courtesy of DAIMLERCHRYSLER CORP.

Fig 3: Identifying Starter Relay Pinout
Courtesy of DAIMLERCHRYSLER CORP.

FUNCTION CHART

CAV	FUNCTION
30	B(+)
85	IGNITION SWITCH OUTPUT
86	PCM-CONTROLLED GROUND
87	STARTER RELAY OUTPUT
87A	NO CONNECT