Hi all,
I am seeking advice on my gauge cluster lights. I have a 2003 UZJ100 RHD (Australia), and all instruments are working, except for the main Type 74 gauge lamps. I have read through the available threads and checked the following.
-Fuses for gauges, panel light, and tail lights in all 3 boxes - all intact.
-I pulled out the rheostat and tested that. Resistance is in spec, and the roller functions correctly; the circuit is intact. Ground is intact.
-Rheostat cable - correct voltage, the ground is intact.
Looking for ideas on next steps?
- I am thinking of removing the whole cluster and testing the supply sockets and cluster pins.
- A harness for a battery box in the boot was put through the firewall grommet a while ago, I am worried the main loom got snicked slightly.
- Does anyone know if the globes are wired in series or parallel? I'm thinking that if globe 1 is gone, it may knock out the others. It's hard to imagine Toyota doing that, though.
After that, I am all out of ideas. Any others would be welcome!
Cheers.
P.S. I am relatively new to DIY auto repair, but my neighbour is a 30-year Toyota mechanic and can hand-hold when needed.
I am seeking advice on my gauge cluster lights. I have a 2003 UZJ100 RHD (Australia), and all instruments are working, except for the main Type 74 gauge lamps. I have read through the available threads and checked the following.
-Fuses for gauges, panel light, and tail lights in all 3 boxes - all intact.
-I pulled out the rheostat and tested that. Resistance is in spec, and the roller functions correctly; the circuit is intact. Ground is intact.
-Rheostat cable - correct voltage, the ground is intact.
Looking for ideas on next steps?
- I am thinking of removing the whole cluster and testing the supply sockets and cluster pins.
- A harness for a battery box in the boot was put through the firewall grommet a while ago, I am worried the main loom got snicked slightly.
- Does anyone know if the globes are wired in series or parallel? I'm thinking that if globe 1 is gone, it may knock out the others. It's hard to imagine Toyota doing that, though.
After that, I am all out of ideas. Any others would be welcome!
Cheers.
P.S. I am relatively new to DIY auto repair, but my neighbour is a 30-year Toyota mechanic and can hand-hold when needed.
