BE-42 BODY ELECTRICAL SYSTEM — Combination Meter Water Temperature Gauge Ignition Switch Test Bulb 3-4W Battery BE0141 U IG E IG BE1320 BE0058 Oil Pressure Gauge Ignition Switch Sender Gauge Battery BE1322 Oil Pressure Gauge Ignition Switch Test Bulb 3-4W Battery BE0144 (c) Ground the terminal on the wire harness side connector through a 3.4 W test bulb. (d) Turn the ignition switch on. Check that the bulb lights and receiver gauge needle moves to the hot side. If operations are not as specified, remove and test the receiver gauge. 2. MEASURE RECEIVER GAUGE RESISTANCE Measure the resistance between terminals. Between terminals Negative lead (–) from ohmmeter | Positive lead (+) from ohmmeter | Resistance (Ω) IG | U | Approx. 54.0 IG | E | Approx. 146.2 U | E | Approx. 200.2 If resistance value is not as specified, replace the sender gauge. 3. MEASURE SENDER GAUGE RESISTANCE Measure the resistance between terminal and ground. Water temperature C (°F) | Resistance (Ω) | Yazaki | Nippodemo 50 (122) | — | 198.5 +33.6/-36.6 60 (140) | 152.7 | — 115 (239) | 26.4 +2.2/-2.6 | — 120 (248) | — | 19.6 +1.71/-2.21 If each resistance value is not as specified, replace the sender gauge. Oil pressure Gauge INSPECTION OF GAUGE 1. INSPECT RECEIVER GAUGE OPERATION (a) Disconnect the connector from the sender gauge. (b) Turn the ignition switch on. Check that the receiver gauge needle moves to the low position. (c) Ground the terminal on the wire harness side connector through a 3.4 W test bulb. Check that the receiver gauge needle moves to the high side.