DomSmith
SILVER Star
I've had a very random and intermittent issue with the fuel gauge and Trip Info display on my 2004 for a while now. It only happens once a month or so at most but it's irritating enough for me to take action.
Symptom 1: Occasionally after filling up the dash fuel gauge doesn't move from where it was. Sometimes turning the key to the OFF position and back ON will reset the gauge and sometimes it will not.
Symptom 2: Occasionally after fueling the Cruising Range on the Trip Info screen will not reset. On occasion it corresponds to he fuel gauge inaccuracy and sometimes not. This almost never resets with the key OFF/ON trick.
I searched on MUD and on the interwebs without much success. The only thing I did find was Prius owners complaining about cruising range reset and they mostly determined it was a problem if you only added a few gallons when fueling. This was not my problem as the 100 is thirsty and never gets fuel unless it's half empty or less.
After consulting with my local Toyota Service Manager buddy we both agreed the first step would be to swap out the fuel sending unit. Part # 83320-60340 ($130ish with discount from Cabe Toyota).
Next I determined what needed to be removed and the tools required for each.
1. Remove rear seats. (plastic pry tools and 14mm socket) 4 plastic hinge covers and 8 bolts.
2. Remove rocker trim at each rear doorwell. (plastic pry tools) 2 trim pieces.
3. Remove plastic steps at each rear door. (tiny flat screwdriver and 10mm socket) 4 plastic covers and 4 bolts.
4. Remove 3 plastic seat anchor covers (torx screwdriver (don't remember size) and plastic pry tools).
5. Pull back carpet kit. (No tools required).
6. Remove fuel sender cover. (philips screwdriver) 2 screws.
7. Remove 2 fuel lines (small flat screwdriver) 2 yellow clips.
8. Unplug 2 wiring connectors (small flat screwdriver).
9. Remove fuel sender/pump assembly (8mm socket or philips screwdriver) 8 8mm screws.
10. Remove/replace sending unit (philips screwdriver and pliers, small flat screwdriver). 2 screws and metal snap in ground?
I did not use the FSM as it looked to be pretty straightforward.
Next up: Removal....
Symptom 1: Occasionally after filling up the dash fuel gauge doesn't move from where it was. Sometimes turning the key to the OFF position and back ON will reset the gauge and sometimes it will not.
Symptom 2: Occasionally after fueling the Cruising Range on the Trip Info screen will not reset. On occasion it corresponds to he fuel gauge inaccuracy and sometimes not. This almost never resets with the key OFF/ON trick.
I searched on MUD and on the interwebs without much success. The only thing I did find was Prius owners complaining about cruising range reset and they mostly determined it was a problem if you only added a few gallons when fueling. This was not my problem as the 100 is thirsty and never gets fuel unless it's half empty or less.
After consulting with my local Toyota Service Manager buddy we both agreed the first step would be to swap out the fuel sending unit. Part # 83320-60340 ($130ish with discount from Cabe Toyota).
Next I determined what needed to be removed and the tools required for each.
1. Remove rear seats. (plastic pry tools and 14mm socket) 4 plastic hinge covers and 8 bolts.
2. Remove rocker trim at each rear doorwell. (plastic pry tools) 2 trim pieces.
3. Remove plastic steps at each rear door. (tiny flat screwdriver and 10mm socket) 4 plastic covers and 4 bolts.
4. Remove 3 plastic seat anchor covers (torx screwdriver (don't remember size) and plastic pry tools).
5. Pull back carpet kit. (No tools required).
6. Remove fuel sender cover. (philips screwdriver) 2 screws.
7. Remove 2 fuel lines (small flat screwdriver) 2 yellow clips.
8. Unplug 2 wiring connectors (small flat screwdriver).
9. Remove fuel sender/pump assembly (8mm socket or philips screwdriver) 8 8mm screws.
10. Remove/replace sending unit (philips screwdriver and pliers, small flat screwdriver). 2 screws and metal snap in ground?
I did not use the FSM as it looked to be pretty straightforward.
Next up: Removal....
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