P0683: Glow Controller - Battery For Glow Controller Open; Dtc: P0683 - Hino Motors HINO 155 series Workshop Manual

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DTC: P0683

P0683: Glow controller - Battery for glow controller open, GND short Glow controller -
Glow control signal Glow controller - Diagnosis signal
INFORMATION
ECU
1. Technical description
• Controlled by GCU.
• The indicator in the meter lights up when a failure (malfunction caused by short-circuit or disconnection) occurs in
the glow system.
<Description of malfunction>
• Detection of the GCU communication error.
2. DTC set condition
(1) DTC detection condition
• Starter key "ON".
• The engine ECU instructs glow discharge.
The conditions described below remain for 1 second or more.
- The battery voltage is in the range of 10 to 16 V.
- Starter not actuated.
(2) Judgement criteria
• The condition that GCU is not actuated (or no response) remains for 4.4 seconds or more.
3. Reset condition
• Just after restoration to normal condition
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
ENGINE (J05E)/TROUBLESHOOTING
ENG3
GCU
BATT
+B
ST SI
Control signal
+B
DI DI
Diagnosis signal
+B
Glow
+B
GL1 GLW1 Glow Plug 1
GL2 GLW2 Glow Plug 2
GL3 GLW3 Glow Plug 3
GL4 GLW4 Glow Plug 4
EN01H02127030602016114
#1cyl
#2cyl
#3cyl
#4cyl
SHTS021270300637