Replace the fuel pump assembly. 9 - 42 SIGNALING SYSTEM ELE C – + 7. The fuel level indicator light fails to come 2. Voltage on. • Connect the pocket tester (DC 20 V) to the meter assembly coupler as shown. 1. Fuel sender Positive tester probe → brown 1 • Drain the fuel from the fuel tank and then Negative tester probe → black/white 2 remove the fuel pump assembly (fuel sender) from the fuel tank. • Connect the pocket tester (Ω × 10) to the fuel pump terminals as shown. Positive tester probe → green/yellow 1 Negative tester probe → black/white 2 G/Y G/R Br/B • Move the fuel sender float to the minimum Y/L Br B/W 3 and maximum 4 level positions. 1 2 • Measure the fuel sender resistance.
Fuel sender resistance • Set the main switch to “ON”. Minimum 3: 139.0 ~ 141.0 Ω • Measure the voltage (12 V) of brown 1 Maximum 4: 19.0 ~ 21.0 Ω and black/white 2 at the meter assembly coupler. • Is the voltage within specification? YES NO R/L B B/WG/Y Replace the meter The wiring circuit 1 2 assembly or ECU. from the main switch 4 to the meter assem- bly coupler is faulty and must be repaired. 3 • Is the fuel sender OK? YES NO YES NO G/Y G/R Br/B Y/L Br B/W