Pinpoint Test TR: Immediate Shutdown (ISDN) 1 and 2 Signals: Introduction
WARNING:
TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE HYBRID SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
This pinpoint test is intended to diagnose the following:
- harness circuits: ISDN1, ISDN2
- transaxle assembly (7000)
TRACTION BATTERY-A (TB-A) CONNECTOR PINS REFERENCE CHART
| Pin | Circuit |
|---|---|
| 29 | ISDN2 (Immediate Shutdown 2) |
| 15 | ISDN1 (Immediate Shutdown 1) |
TRANSAXLE ASSEMBLY-A CONNECTOR PINS REFERENCE CHART
| Pin | Circuit |
|---|---|
| 4, 5 | VPWR (Vehicle Power) |
| 2, 8 | GND (Ground) |
| 12 | B+ (Battery Positive Voltage) |
| 7 | CAN- (Controller Area Network) |
| 1 | CAN+ (Controller Area Network) |
| 6 | ISDN1 (Immediate Shutdown 1) |
TRANSAXLE ASSEMBLY-B CONNECTOR PINS REFERENCE CHART
| Pin | Circuit |
|---|---|
| 5 | GMSDN (Generator Motor Shutdown) |
| 4 | TMAC (Torque of Motor - AC signal) |
| 9 | TGAC (Torque of Generator - AC signal) |
| 1 | CTO (Clean Tachometer Output) |
| 7 | ISDN2 (Immediate Shutdown 2) |