Rodeo LS 4WD V6-3.2L (1998)
Low Fuel Lamp/Indicator: Description and Operation
WARNING: Do not smoke while working on the fuel system. Keep open flame away from the work area. Drain fuel only into a approved
container.
The resistance of the fuel tank unit varies according to the float position in the fuel tank. When the fuel tank has an adequate amount of fuel, the low fuel
indicator light circuit is open and the indicator light will not come on.
The fuel level output is received by the Engine or Powertrain Control Module (ECM or PCM), and when the fuel level drops to almost empty, the
ECM or PCM closes the circuit and the Low Fuel Indicator comes on to alert the driver.
NOTE 1: The circuit between the PCM and the gauge can be tested with the PGM Tester. In the "ENGINE\MISC TESTS\FUEL GAUGE" menu,
the PGM Tester can command the PCM to move the gauge in 10% increments.
NOTE 2: The PCM software must match the resistance range of the fuel level sending unit. These sending unit resistance ranges are used in the
1998 model year:
FULL = 20 Ohms to EMPTY = 120 Ohms
FULL = 80 Ohms to EMPTY = 290 Ohms
The 1999 model year uses only the 80 to 290 Ohm range.
Using the PGM Tester, select the "ENGINE\MISC TESTS\BROADCAST CODE" menu. The following broadcast codes work with the 20 to 120 Ohm
fuel level sending unit:
- BXBB
- BXBC
- BXBD
- BXBF
- CKMA
- CKMB
- CMWZ
- CMXA
- CMXB
- CMXC
- CMZA
- CMZB
All other broadcast codes work with the 80 to 290 Ohm sending unit.