Using Impulse Counter Scan Tool
NOTE:
The DTC memory can only be read with the impulse counter scan tool only on vehicles up to Diagnosis Version 46. On vehicles as of Diagnosis Version 49, DTCs may only be read with the HHT. See USING HAND HELD TESTER .
- Connect Impulse counter scan tool Data Link Connector (X11/4) according to connection diagram. See Figure. Connect the Yellow wire of the impulse counter scan tool to the diagnostic output socket of the system to be tested. See IMPULSE COUNTER DIAGNOSTIC OUTPUT SOCKET IDENTIFICATION table.
- Turn ignition on. Press start button for 2-4 seconds. Read and record Diagnostic Trouble Code (DTC).
- Press start button again for 2-4 seconds to read the next DTC.
- Repeat step 3 until all DTC have been read.
- To clear a DTC, wait 3 seconds after DTC is displayed then press the start button for 6-8 seconds. Each DTC must be cleared individually.
NOTE:
Clearing of DTC must begin within 20 seconds of reading the DTC. After 20 seconds, the DTC can no longer be cleared with out displaying that code again.
IMPULSE COUNTER DIAGNOSTIC OUTPUT SOCKET IDENTIFICATION
| System To Be Tested | Diagnostic Output Socket No. | |||
|---|---|---|---|---|
| EA/CC/ISC | ||||
| 16-Pin DLC | 14 | |||
| 38-Pin DLC | 7 | |||
| Model 210 | (1) | |||
| Engine Control Module (HFM-SFI) | ||||
| 16-Pin DLC | 8 | |||
| 38-Pin DLC | 4 | |||
| Diagnostic Module | ||||
| 16-Pin DLC | 3 | |||
| 38-Pin DLC | 19 | |||
| Base Module | ||||
| 38-Pin (Except 202 & 210 Models) | 8 | |||
| Engine RPM Signal | ||||
| 38-Pin (Engine Speed (TN) Output, Except 202 & 210 Models) | 13 | |||
| 38-Pin (Engine Speed (TN) Output, 202 & 210 Models) | 17 | |||
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