ON-BOARD DIAGNOSIS SYSTEM [RETRACTABLE HARDTOP CONTROL MODULE]

id091600020041

Outline

Function

―  A malfunction detection function, which detects overall malfunctions in the retractable hardtop control module-related parts.

―  A memory function, which stores detected DTCs.

―  A display function, which indicates malfunction locations and status via DTC output.

―  A PID/data monitoring function, which reads out specific input/output signals and verifies the input/output condition.

―  Simulation function for driving retractable hardtop control module-related parts

On-board Diagnostic Function

Malfunction detection function

•  Detects malfunctions in input/output signals.

•  If a malfunction occurs, the retractable hardtop control module records the malfunction as a DTC. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

Memory Function

•  Stores malfunctions detected by the malfunction detection function as DTCs in the retractable hardtop control module. The detected DTCs are not cleared even if the ignition is switched OFF (LOCK) or the negative battery cable is disconnected.

Display Function

•  Using the Mazda Modular Diagnostic System (M-MDS), DTCs can be read out and deleted, and the PID/data monitoring function can be activated.

DTC table

DTC 7-digit code definition

•  When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.

amxzzn00001580

Status byte for DTC

•  The two digits (two digits after hyphen (-)) after the 7-digit DTC.

amxzzn00001581

•  A code which indicates the pending code, current/past malfunction status, or warning illumination status.

•  Can be read by performing a CMDTC self-test using the Mazda Modular Diagnostic System (M-MDS).

•  For details on the status byte, refer to the explanation on the Mazda Modular Diagnostic System (M-MDS) when reading the DTC.

Detection condition for the applicable DTC

DTC No.	Description	Detection condition
B1D98:23	Front roof link motor (RH) pulse input circuit malfunction	•  The retractable hardtop control module cannot detect a pulse signal from the front roof link motor (RH) when the front roof link motor operation starts.
B1D98:79	Exceeds maximum number of pulse counts for front roof link motor (RH)	•  The retractable hardtop control module detects a pulse signal exceeding the upper limit of the pulse count number from the front roof link motor (RH).
B1D99:14	Front roof link motor (RH) circuit malfunction	•  The retractable hardtop control module cannot receive a signal from the front roof link motor (RH) while the front roof link motor (RH) is operating.
B1D99:74	Front roof link motor (RH) operation time-out	•  The retractable hardtop control module detects that the front roof link motor (RH) is operating for 10 s or more.
B1D99:94	Error signal received from front roof link motor (RH)	•  The retractable hardtop control module receives a signal from the front roof link motor (RH) while the front roof link motor (RH) is not operating.
B1D9A:23	Front roof link motor (LH) pulse input circuit malfunction	•  The retractable hardtop control module cannot detect a pulse signal from the front roof link motor (LH) when the front roof link motor operation starts.
B1D9A:79	Exceeds maximum number of pulse counts for front roof link motor (LH)	•  The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the front roof link motor (LH).
B1D9B:14	Front roof link motor (LH) circuit malfunction	•  The retractable hardtop control module cannot receive a signal from the front roof link motor (LH) while the front roof link motor (LH) is operating.
B1D9B:74	Front roof link motor (LH) operation time-out	•  The retractable hardtop control module detects that the front roof link motor (LH) is operating for 10 s or more.
B1D9B:94	Error signal received from front roof link motor (LH)	•  The retractable hardtop control module receives a signal from the front roof link motor (RH) while the front roof link motor (LH) is not operating.
B1D9C:23	Rear roof link motor (RH) pulse input circuit malfunction	•  The retractable hardtop control module cannot detect a pulse signal from the rear roof link motor (RH) when the rear roof link motor operation starts.
B1D9C:79	Exceeds maximum number of pulse counts for rear roof link motor (RH)	•  The retractable hardtop control module detects a pulse signal exceeding the upper limit of the pulse count number from the rear roof link motor (RH).
B1D9D:14	Rear roof link motor (RH) circuit malfunction	•  The retractable hardtop control module cannot receive a signal from the rear roof link motor (RH) while the rear roof link motor (RH) is operating.
B1D9D:74	Rear roof link motor (RH) operation time-out	•  The retractable hardtop control module detects that the rear roof link motor (RH) is operating for 10 s or more.
B1D9D:94	Error signal received from rear roof link motor (RH)	•  The retractable hardtop control module receives a signal from the rear roof link motor (RH) while the rear roof link motor (RH) is not operating.
B1D9E:23	Rear roof link motor (LH) pulse input circuit malfunction	•  The retractable hardtop control module cannot detect a pulse signal from the rear roof link motor (LH) when the rear roof link motor operation starts.
B1D9E:79	Exceeds maximum number of pulse counts for rear roof link motor (LH)	•  The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the rear roof link motor (LH).
B1D9F:14	Rear roof link motor (LH) circuit malfunction	•  The retractable hardtop control module cannot receive a signal from the rear roof link motor (LH) while the rear roof link motor (LH) is operating.
B1D9F:74	Rear roof link motor (LH) operation time-out	•  The retractable hardtop control module detects that the rear roof link motor (LH) is operating for 10 s or more.
B1D9F:94	Error signal received from rear roof link motor (LH)	•  The retractable hardtop control module receives a signal from the rear roof link motor (RH) while the rear roof link motor (LH) is not operating.
B1DA0:23	Top lock motor pulse input circuit malfunction	•  The retractable hardtop control module cannot detect a pulse signal from the Top lock motor when the Top lock motor operation starts.
B1DA0:79	Exceeds maximum number of pulse counts for top lock motor	•  The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the top lock motor.
B1DA1:14	Top lock motor circuit malfunction	•  The retractable hardtop control module cannot receive a signal from the top lock motor while the top lock motor is operating.
B1DA1:74	Top lock motor operation time-out	•  The retractable hardtop control module cannot receive a signal from the top lock motor while the top lock motor is operating.
B1DA1:94	Error signal received from top lock motor	•  The retractable hardtop control module receives a signal from the top lock motor while the top lock motor is not operating.
B1DA2:92	Opening angles of the left and right front roof link motors do not match	•  The retractable hardtop control module detects a differing number of pulse counts between the front roof link motor (RH) and the front roof link motor (LH).
B1DA3:92	Opening angles of the left and right rear roof link motors do not match	•  The retractable hardtop control module detects a differing number of pulse counts between the rear roof link motor (RH) and the rear roof link motor (LH).
B1DA4:29	Incorrect front roof position	•  The retractable hardtop control module detects an incorrect front roof position.
B1DA5:29	Incorrect front roof position	•  The retractable hardtop control module detects an incorrect rear roof position.
B1DA6:29	Incorrect top lock position	•  The retractable hardtop control module detects an incorrect top lock position.
B1DA7:29	Incorrect roof position	•  The retractable hardtop control module detects an incorrect roof position.
B1DA8:23	Incorrect top lock position	•  The retractable hardtop control module detects the top lock switch ON condition for 30 s when the roof position is at a position other than fully-closed.
B1DA8:24	Incorrect top lock position	•  The retractable hardtop control module detects that the number of times the top lock switch operates exceeds the maximum.
B1DA9:23	Retractable hardtop switch circuit malfunction	•  The retractable hardtop control module detects a short to ground in retractable hardtop switch circuit.
B1DA9:2A	Retractable hardtop switch circuit malfunction	•  The retractable hardtop control module detects that the retractable hardtop switch is in the ON or OFF condition for 30 s.
B1DA9:2B	Retractable hardtop switch circuit malfunction	•  The retractable hardtop control module detects that the retractable hardtop switch is in the ON or OFF condition for 30 s.
U0001:88	Module communication error (HS-CAN)	•  Retractable hardtop control module detects the CAN bus communication line (HS-CAN) malfunction 10 times continuously with the ignition switched ON (engine off or on).
U0030:87	Communication error with power window main switch	•  The retractable hardtop control module cannot receive a power window open signal during the retractable hardtop operation.
U0031:86	Communication error with power window main switch	•  The retractable hardtop control module receives a power window open signal for 30 s or more.
U0100:00	Communication error with PCM	•  Retractable hardtop control module could not receive the CAN signal from the PCM for 5 s or more with the ignition switched ON (engine off or on).
U0101:00	Communication error with TCM	•  Retractable hardtop control module could not receive the CAN signal from the TCM for 1 s or more with the ignition switched ON (engine off or on).
U0155:00	Communication error with instrument cluster	•  Retractable hardtop control module could not receive the CAN signal from the instrument cluster for 2 s or more with the ignition switched ON (engine off or on).
U0401:64	Error signal received from PCM	•  The retractable hardtop control module receives an error signal from the PCM with the ignition switched ON (engine off or on).
U0401:86	Error signal received from PCM	•  The retractable hardtop control module receives an error signal from the PCM with the ignition switched ON (engine off or on).
U0402:86	Error signal received from TCM	•  The retractable hardtop control module receives an error signal from the TCM with the ignition switched ON (engine off or on).
U200B:16	Hall effect switch power supply malfunction	•  The retractable hardtop control module detects Hall effect switch power supply voltage of less than 4 V.
U2300:54	Configuration data not received from instrument cluster	•  The retractable hardtop control module cannot receive configuration data from the instrument cluster with the ignition switched ON (engine off or on).
U2300:55	Instrument cluster configuration not performed	•  The retractable hardtop control module receives a signal which indicates the instrument cluster configuration is not performed with the ignition switched ON (engine off or on).
U2300:56	Configuration data unmatched with instrument cluster	•  With the ignition switched ON (engine off or on), configuration data of the retractable hardtop control module and the instrument cluster are not matched.
U2300:64	Configuration data unmatched with instrument cluster	•  With the ignition switched ON (engine off or on), configuration data of the retractable hardtop control module and the instrument cluster are not matched.
U3000:44	Retractable hardtop control module internal malfunction	•  The retractable hardtop control module detects a malfunction in the retractable hardtop control module with the ignition switched ON (engine off or on).
U3000:45	Retractable hardtop control module internal malfunction	•  The retractable hardtop control module detects a malfunction in the retractable hardtop control module with the ignition switched ON (engine off or on).
U3000:49	Retractable hardtop control module internal malfunction	•  The retractable hardtop control module detects a malfunction in the retractable hardtop control module with the ignition switched ON (engine off or on).
U3003:16	Retractable hardtop control module low power supply voltage input	•  The retractable hardtop control module power supply circuit voltage of less than 7.5 V is detected with the ignition switched ON (engine off or on).
U3003:17	Retractable hardtop control module high power supply voltage input	•  The retractable hardtop control module power supply circuit voltage of 17.5 V or more is detected with the ignition switched ON (engine off or on).
U3003:1C	Retractable hardtop control module low power supply voltage input	•  The retractable hardtop control module power supply circuit voltage of less than 10 V is detected with the ignition switched ON (engine off or on).

Snapshot Data

Note

•  The retractable hardtop control module stores the following two types of snapshot data (vehicle information) when a DTC is detected and displays them in the Mazda Modular Diagnostic System (M-MDS).

―  Vehicle information detected by retractable hardtop control module

―  Vehicle information detected by instrument cluster and received by retractable hardtop control module via CAN communication

Data Monitor Function