P073D: Transmission Information - Rationality; Dtc: P073D - Hino Motors HINO 155 series Workshop Manual

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DTC: P073D

P073D: Transmission information - rationality

INFORMATION
Engine ECU
1. Technical description
• Transmission information is transferred through CAN communication.
<Description of malfunction>
• Information sent from the transmission ECU (AT) is incorrect.
• Information from transmission ECU (AT) and neutral switch information are abnormal.
2. DTC set condition
(1) DTC detection condition
• Battery voltage is in the range of 10 V to 16 V.
• The PTO is deactivated.
(2) Judgement criteria
Detected at one of the following conditions:
• The condition that there is an abnormality (communication blackout between the vehicle ECU and transmis-
sion ECU) in the lock up information provided by the vehicle control ECU remains for 5 seconds or more.
• The condition that there is an abnormality in the HV front clutch information provided by the vehicle control
ECU remains for 5 seconds or more.
• The condition that the neutral switch is positioned at the neutral position even though the neutral information
provided by the vehicle control ECU recognizes the "non-neutral" state remains for 10 seconds or more.
• The condition that the neutral information provided by the vehicle control ECU recognizes the "neutral" state
even though the lock up information recognizes the "lock up" remains for 10 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
5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• –
<Symptoms on the vehicle due to malfunction>
• –
6. Pre-inspection work
• Check that the battery voltage is in the normal range.
ENGINE (J05E)/TROUBLESHOOTING
6.4mA
X2M
(NSW)
Neutral signal
Neutral switch
M16
(L )
EN01H02127030602016117
SHTS021270300654