ENGINE (J05E)/TROUBLESHOOTING2–666
DTC: P064C
EN01H02127030602016109
P064C: Glow controller - Battery for glow plug open, GND short Glow controller - Over
temperature
INFORMATION
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>
• A disconnection or short-circuit has occurred in the GCU internal circuit.
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 is not actuated.
(2) Judgement criteria
• The condition that the difference between the glow control power supply voltage and the glow operating volt-
age is 2 V or less remains at for 0.3 seconds or more.
3. Reset condition
• Immediately after normal operation is restored.
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
GLW1 #1cylGL1
+B
+B
+B
+B
Glow Plug 1
GLW2 #2cylGL2 Glow Plug 2
GLW3 #3cylGL3 Glow Plug 3
GLW4 #4cylGL4
BATT
GCUECU
SI
DI
ST
DI
Glow Plug 4
Glow
Control signal
Diagnosis signal
ENG3
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