{"id":9039,"date":"2022-03-10T20:30:44","date_gmt":"2022-03-10T20:30:44","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2335026\/"},"modified":"2022-03-10T20:30:44","modified_gmt":"2022-03-10T20:30:44","slug":"sm2335026","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2335026\/","title":{"rendered":"DTC C0020:11, C0020:12, C0020:13, C0020:49 OR C0020:71 [DSC HU\/CM]"},"content":{"rendered":"
\n

DTC C0020:11, C0020:12, C0020:13, C0020:49 OR C0020:71 [DSC HU\/CM]<\/h3>\n<\/div>\n

SM2335026<\/p>\n

<\/p>\n
\n
\n
\n

id040262003300<\/p>\n



\n<\/a><\/p>\n

Outline<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\n

System malfunction location<\/p>\n<\/th>\n

\n

Pump motor, pump relay<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
Detection condition<\/span><\/div>\n<\/td>\n
\n
\u2022 C0020:11<\/div>\n
\n
\n
\u2015 The motor relay signal does not correspond to the DSC HU\/CM ON signal.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 C0020:12<\/div>\n
\n
\n
\u2015 The motor monitor signal does not correspond to the DSC HU\/CM OFF signal.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 C0020:13<\/div>\n
\n
\n
\u2015 A condition is detected in which the motor relay voltage is less than the specification while the DSC HU\/CM controls the pump relay at on.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 C0020:49<\/div>\n
\n
\n
\u2015 The DSC HU\/CM detects a pump motor drive circuit malfunction.<\/div>\n<\/dd>\n<\/dl>\n
\u2022 C0020:71<\/div>\n
\n
\n
\u2015 The DSC HU\/CM detects a voltage decrease occurring in the pump motor after the pump motor operates.<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n<\/tr>\n
\n
Fail-safe<\/span><\/div>\n<\/td>\n
\n
Refer to \u201cDTC Table\u201d and \u201cFail-safe Function Malfunction Contents Table\u201d. (See DTC TABLE [DSC HU\/CM (US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
Possible cause<\/span><\/div>\n<\/td>\n
\n
\u2022 DSC HU\/CM connector or terminals malfunction<\/div>\n
\u2022 Short to ground or open circuit in DSC HU\/CM power supply circuit<\/div>\n
\u2022 Open circuit in DSC HU\/CM ground circuit<\/div>\n
\u2022 DSC HU\/CM malfunction<\/div>\n
\n
\n
\u2015 Pump motor stuck, open circuit, short circuit to ground, or short circuit to power supply<\/div>\n
\u2015 Motor relay stuck, open circuit, short circuit to ground, or short circuit to power supply<\/div>\n<\/dd>\n<\/dl>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n



\n<\/a><\/p>\n

Diagnostic Procedure<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Step<\/p>\n<\/th>\n

\n

Inspection<\/p>\n<\/th>\n

\n

Results<\/p>\n<\/th>\n

\n

Action<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

\n
1<\/div>\n<\/td>\n
\n
VERIFY PUMP MOTOR OPERATION<\/div>\n
\u2022 Verify if the pump motor operates using the simulation item TCS_PUMP_MOTOR. (See SIMULATION INSPECTION<\/a>.) (See SIMULATION TABLE [DSC HU\/CM]<\/a>.)<\/div>\n
\u2022 Does the pump motor operate?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
2<\/div>\n<\/td>\n
\n
INSPECT DSC HU\/CM CONNECTOR FOR MALFUNCTION<\/div>\n
\u2022 Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION<\/a>.)<\/div>\n
\u2022 Are the connector and terminal normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
3<\/div>\n<\/td>\n
\n
INSPECT DSC HU\/CM POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT<\/div>\n
\u2022 Inspect the power supply circuit for an open circuit and short to ground. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
4<\/div>\n<\/td>\n
\n
INSPECT DSC HU\/CM POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY<\/div>\n
\u2022 Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
5<\/div>\n<\/td>\n
\n
INSPECT DSC HU\/CM GROUND CIRCUIT FOR OPEN CIRCUIT<\/div>\n
\u2022 Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION<\/a>.)<\/div>\n
\u2022 Is the circuit normal?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Repair or replace the malfunctioning location and perform the repair completion verification.<\/div>\n<\/td>\n<\/tr>\n
\n
Repair completion verification 1<\/div>\n<\/td>\n
\n
VERIFY THAT VEHICLE IS REPAIRED<\/div>\n
\u2022 Install\/connect the part removed\/disconnected during the troubleshooting procedure.<\/div>\n
\u2022 Clear the DTC recorded in the memory. (See CLEARING DTC<\/a>.)<\/div>\n
\u2022 Start the engine and drive the vehicle at 10 km\/h {6.2 mph} or more<\/span>.<\/div>\n
\u2022 Perform the DTC inspection for the DSC HU\/CM. (See DTC INSPECTION<\/a>.)<\/div>\n
\u2022 Is the same Pending DTC present?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.<\/div>\n
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)]<\/a>.)<\/div>\n
If the CAN communication is normal, perform the diagnosis from Step 1.<\/div>\n
\u2022 If the malfunction recurs, replace the DSC HU\/CM, then go to the next step. (See DSC HU\/CM REMOVAL\/INSTALLATION [L.H.D. (US)]<\/a>.)<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
Go to the next step.<\/div>\n<\/td>\n<\/tr>\n
\n
Repair completion verification 2<\/div>\n<\/td>\n
\n
VERIFY IF OTHER DTCs DISPLAYED<\/div>\n
\u2022 Perform the DTC inspection. (See DTC INSPECTION<\/a>.)<\/div>\n
\u2022 Are any DTCs displayed?<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Repair the malfunctioning location according to the applicable DTC troubleshooting.<\/div>\n<\/td>\n<\/tr>\n
\n
No<\/div>\n<\/td>\n
\n
DTC troubleshooting completed.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n

<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DTC C0020:11, C0020:12, C0020:13, C0020:49 OR C0020:71 [DSC HU\/CM] SM2335026 id040262003300 Outline System malfunction location Pump motor, pump relay Detection condition \u2022 C0020:11 \u2015 The motor relay signal does not correspond to the DSC HU\/CM ON signal. \u2022 C0020:12 \u2015 The motor monitor signal does not correspond to the DSC HU\/CM OFF signal. \u2022 C0020:13 \u2015 A condition is detected in which the motor relay voltage is less than the specification while the DSC HU\/CM […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-9039","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/comments?post=9039"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9039\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=9039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}