System Main Relay

INSPECTION

1. INSPECT NO. 1 SYSTEM MAIN RELAY









NOTE: Connectors B and C have the same shape. Identify each connector by the wire harness length (L) and the wire harness color on the terminal 2 side.

a. Check the resistance.




1. Measure the resistance between the connectors.

If the results are not as specified, replace the No. 1 system main relay.

2. Apply battery voltage between the GND terminal and CONT1 terminal of the connector A, then measure the resistance between the positive and negative terminals.

Standard resistance: Below 1 Ohm

If the results are not as specified, replace the No. 1 system main relay.

b. Inspect the resistance.
1. Measure the resistance between the GND terminal and CONT1 terminal of the connector A.

Standard resistance: 70 to 160 kOhms

If the the results are not as specified, replace the No. 1 system main relay.




2. INSPECT NO. 2 SYSTEM MAIN RELAY
a. Install the 2 installed nuts to the negative and positive terminals.

Torque: 5.6 N.m (57 kgf.cm, 50 in.lbf)

b. Check the resistance.
1. Measure the resistance between the positive and negative terminals.

Standard resistance: 10 kOhms or higher

If the result is not as specified, replace the No. 2 system main relay.

2. Apply battery voltage between the connector terminals, then measure the resistance between the positive and negative terminals.

Standard resistance: Below 1 Ohm

If the result is not as specified, replace the No. 2 system main relay.

c. Inspect the resistance.
1. Measure the resistance between the connector terminals.

Standard resistance: 20 to 50 kOhms

If the result is not as specified, replace the No. 2 system main relay.




3. INSPECT NO. 3 SYSTEM MAIN RELAY
a. Install the 2 installed nuts to the negative and positive terminals.

Torque: 5.6 N.m (57 kgf.cm, 50 in.lbf)

b. Check the resistance.
1. Measure the resistance between the positive and negative terminals.

Standard resistance: 10 kOhms or higher

If the result is not as specified, replace the No. 3 system main relay.

2. Apply battery voltage between the connector terminals, then measure the resistance between the positive and negative terminals.

Standard resistance: Below 1 Ohm

If the result is not as specified, replace the No. 3 system main relay.

c. Inspect the resistance.
1. Measure the resistance between the connector terminals.

Standard resistance: 20 to 50 kOhms

If the result is not as specified, replace the No. 3 system main relay.