Hand Held Tester or Impulse Counter Scan Tool (16-Pole DLC)

16-pole Data Link Connector (X11/4)

Connect HHT as follows:
Red wire (circuit 30, voltage): Battery + or X4/10
Black wire (circuit 31, ground): Socket 1
White wire (circuit 15, voltage): Socket 16
Yellow wire (diagnostic data): Diagnostic output socket of the system being tested.

Connect impulse counter scan tool as follows:
Black wire (circuit 31, ground): Socket 1
Red wire (circuit 15, ignition): Socket 16
Yellow wire (diagnostic data): Diagnostic output socket of the system being tested.

Connection Layout:

013 Impulse counter scan tool (alternatively: Hand-Held Tester 087)
087 Hand-Held Tester (HHT) (alternatively: Impulse counter Scan Tool)
X4/10 Terminal block, circuit 30
X11/4 Data link connector

Adaptor cable, 965 589 00 50 OD (not shown)