TE S T ACTION AP PLICAB ILITY
1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the
e n gi n e /ve h ic le o p e ra ti n g c o n d i tio n s u n d e r w h ic h th e D TC w a s s e t. S o m e o f
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Tur n th e ign it ion on .
Wit h th e DRB, er a se E CM DTCs.
Per for m sever a l ign it ion cycles lea vin g th e ign it ion on for a t lea st 10 secon ds t h en off
for 10 secon ds.
Wit h th e DRBIII",readtheECMDTCs.
Did t h is DTC set a ga in ?
All
Ye s → Go To 2
No → Go To 6
2 Tur n th e ign it ion off.
Discon n ect ea ch Glow P lu g h a r n ess con n ect or.
Discon n ect t he Glow Plug Modu le ha r n ess con n ect or.
Mea su r e th e resista n ce of ea ch Glow P lu g Con t rol cir cu it.
Is t h e resista n ce below 10.0 ohm s for ea ch circu it ?
All
Ye s → Go To 3
No → Repa ir th e a ppr opr iat e Glow Plu g Con t r ol cir cu it for an open .
Per for m ROAD TE ST VE RIF ICATION - VER-2.
3 Tur n th e ign it ion off.
Discon n ect ea ch Glow P lu g h a r n ess con n ect or.
Discon n ect t he Glow Plug Modu le ha r n ess con n ect or.
Mea su r e th e resista n ce between gr ou n d a n d ea ch Glow P lu g Con t r ol cir cu it .
Is t h e resista n ce below 1000.0 ohm s for a n y of t h e mea sur em en t s?
All
Ye s → Repa ir t h e a ppr opr ia t e Glow P lu g Cont r ol cir cu it for a sh ort t o
gr ou n d.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 4
4 Tur n th e ign it ion off.
Discon n ect ea ch Glow P lu g h a r n ess con n ect or.
Discon n ect t he Glow Plug Modu le ha r n ess con n ect or.
Tur n th e ign it ion on .
Mea su r e th e volt a ge of ea ch Glow Plu g Con t rol cir cu it.
Is t h e volt a ge below 1.0 volt for ea ch circu it ?
All
Ye s → Go To 5
No → Repa ir t h e a ppr opr ia t e Glow P lu g Con t rol cir cu it for a sh or t t o
volt a ge
Per for m ROAD TE ST VE RIF ICATION - VER-2.
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DRI V EABI LI T Y - DI ESEL
P 1482-GLOW P LU G MOD U LE - EXCES S CURREN T — Co n t i n u ed