Hi, I have tried searching the forum for a similar thread, i did find a number of threads related to glow plug's..... but could not find find exact symptoms....please redirect me if i am wrong.

About 6 months back i had starting trouble, in which the preglow indicator used to flash but still the engine had starting problem...... i checked the glow plugs only one was working...hence changed all 5, replaced them with bosch duraterms..problem solved. about 2 months back the preglow indicator or the GPR (glow plug relay) did not cutoff after the starter is ingaged it kept glowing, which worried me as the plugs dont take much time to blow if kept on....afte r operating the switch 2-3 time it used to cutoff. Then probably a month back the preglow stopped comming on rather the GPR was not getting triggered. Found that the GPR was not getting switch supply at 15 pin......in route imideate fix that i could think of at that moment, connected a wire to pin 15 and routed it to the cabin through the accelerator cable gromet and when required connected it to the cigarret lighter +ve. From the forum threads i realised that OVP could be the culprit, checked it and it did supply voltage to 87pin. now the ABS light is on...darn
I striped the ignition switch to see if 15 gets supply and it was fine since 15pin is common.
Am i missing something......please could some one shed some light.
or is there a circuit diagram for the Gp circuit.