Toyota 4Runner manuals

Toyota 4Runner: Relay(w/ Ptc Heater)

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. REMOVE PTC HEATER RELAY (PTC NO. 1, PTC NO. 1, PTC NO. 3)

(a) Remove the 3 PTC heater relays from the engine room relay block.

Text in Illustration

*1

PTC No. 1 Relay

*2

PTC No. 2 Relay

*3

PTC No. 3 Relay


2. INSPECT PTC HEATER RELAY (PTC NO. 1, PTC NO. 2, PTC NO. 3)


(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 - 5

Battery voltage not applied between terminals 1 and 2

10 kΩ or higher

Battery voltage applied to terminal 1 and 2

Below 1 Ω

  • If the result is not as specified, replace the relay.

3. INSTALL PTC HEATER RELAY (PTC NO. 1, PTC NO. 2, PTC NO. 3)

(a) Install the 3 PTC heater relays to the engine room relay block.

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