Removal Procedure
- Disconnect the hybrid battery. Refer to
Hybrid Battery Service Disconnect/Connect
.
- Remove the (12-volt) battery tray. Refer to
Battery Tray Replacement
.
Caution: To help avoid personal injury, additional precautions must be taken prior to working on the generator control module or the generator starter. After removing the 36V battery cables from the generator battery, remove both
engine wiring harness connectors from the generator control module. Wait at least 5 minutes and then remove the generator control module cover. Verify voltage levels at all 36V, 12V, and 3-phase connections, are less than 3 volts using
a DMM before proceeding.
- Disconnect the 2 engine wiring harness electrical connectors (1) from the generator control module.
- WAIT at least 5 minutes in order to allow the voltage stored in the generator control module to discharge.
- Remove the generator control module cover bolts and cover.
- The generator control module will have to be checked for voltage potential using a voltmeter. First, verify that the voltmeter works:
6.1. | Set the voltmeter to DC voltage. |
6.2. | Measure the vehicle's 12-volt battery voltage. |
6.3. | The meter should read greater than +12 volts DC. |
- Now, check the generator control module for voltage potential, in order to ensure that the module has been disabled.
7.1. | Measure from the 36-volt positive terminal (3) to a known good chassis ground. The voltage should be less than 3 volts. |
7.2. | Measure from the 12-volt positive terminal (4) to a known good chassis ground (2). The voltage should be less than 3 volts. |
7.3. | Measure from the ground terminal (2) to a known good chassis ground, checking for continuity. |
Caution: To help avoid personal injury, always treat the 3-phase cable and connectors as if voltage is present and as if the surface of all parts
of the cable is hot.
- Verify that the generator control module 3-phase cables are disabled.
8.1. | Measure from each phase 1, 2, and 3 connection (1) to a known good chassis ground. The voltage should be less than 3 volts. |
8.2. | After verifying that there is no voltage present, the 12-volt and 36-volt positive battery cables can now be removed from the generator control module. |
- Remove the 12-volt positive battery cable nut (1) from the generator control module.
- Remove the 12-volt positive battery cable bolt (2) from the generator control module.
- Remove the 12-volt positive battery cable from the generator control module.
- Remove the 36-volt positive battery cable nut from the generator control module.
- Remove the 36-volt terminal block nuts from the generator control module.
- Lift up, and remove the 36-volt terminal block position the block out of the way. Discard the terminal block seal.
- Remove the 36-volt positive battery cable retainer (2) from the shock tower bracket.
- Remove the 36-volt positive battery cable bracket nuts (5) from the front of dash studs.
- Remove the 36-volt positive battery cable bracket to the front of dash studs.
- From inside the rear of the vehicle, remove the 36-volt positive battery cable shield lead nut (3)
from the generator battery.
- Remove the 36-volt positive battery cable shield lead (4) to the generator battery stud.
- Remove and discard the 36-volt positive battery cable lead nut (6).
- Remove the 36-volt positive battery cable lead (5).
- Squeeze the grommet sides together and push the grommet through the floor panel.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
- Remove the 36-volt positive battery cable rear suspension bracket bolts.
- Have an assistant support the 36-volt positive battery cable channel.
- Remove the 36-volt positive battery cable channel to underbody bolts (1, 2).
- With the aid of the assistant, remove the 36-volt positive battery cable channel from the vehicle.
- Place the 36-volt positive battery cable channel on a clean work surface.
- Cut the tie straps securing the 36-volt positive battery cable to the battery cable channel.
- Remove the 36-volt positive battery cable from the battery cable channel.
Installation Procedure
- Install the 36-volt positive battery cable to the battery cable channel.
- Install NEW tie straps securing the 36-volt positive battery cable to the battery cable channel.
- With the aid of an assistant, position the 36-volt positive battery cable channel to the vehicle.
- Feed the 36-volt cable up through the floor panel, and secure the grommet into place.
Notice: Refer to Fastener Notice in the Preface section.
- Install the 36-volt positive battery cable channel to underbody bolts (1, 2).
Tighten
• | Tighten the bolts (1) to 22 N·m (16 lb ft). |
• | Tighten the bolts (2) to 10 N·m (89 lb in). |
- Install the 36-volt positive battery cable rear suspension bracket bolts.
Tighten
Tighten the bolts to 25 N·m (18 lb ft).
- Lower the vehicle.
- From inside the rear of the vehicle, install the 36-volt positive battery cable shield lead (4) to
the generator battery stud.
- Install the 36-volt positive battery cable shield lead nut (3) to the generator battery.
Tighten
Tighten the nut to 6 N·m (53 lb in).
- Install the 36-volt positive battery cable lead (5).
- Install a NEW 36-volt positive battery cable lead nut (6). Start the nut finger tight, and then torque to the specification given.
Tighten
Tighten the nut to 15 N·m (11 lb ft).
- Install the 36-volt positive battery cable bracket to the front of dash studs.
- Install the 36-volt positive battery cable bracket nuts (5) to the front of dash studs.
Tighten
Tighten the nuts to 10 N·m (89 lb in).
- Install the 36-volt positive battery cable retainer (2) to the shock tower bracket.
- Install a NEW terminal block seal to the generator control module.
- Position and install the 36-volt terminal block to the generator control module.
- Install the 36-volt terminal block nuts to the generator control module.
Tighten
Tighten the nuts to 10 N·m (89 lb in).
- Install the 36-volt positive battery cable nut to the generator control module.
Tighten
Tighten the nuts to 10 N·m (89 lb in).
- Install the 12-volt positive battery cable to the generator control module.
- Install the 12-volt positive battery cable bolt (2) to the generator control module.
Tighten
Tighten the nuts to 10 N·m (89 lb in).
- Install the 12-volt positive battery cable nut (1) to the generator control module.
Tighten
Tighten the nuts to 10 N·m (89 lb in).
- Install the generator control module cover and bolts.
Tighten
Tighten the bolts to 10 N·m (89 lb in).
- Connect the 2 engine wiring harness electrical connectors to the generator control
module.
- Install the (12-volt) battery tray. Refer to
Battery Tray Replacement
.
- Connect the hybrid battery. Refer to
Hybrid Battery Service Disconnect/Connect
.