GMC chervolet camaro 1999 Service Manual page 676

Brakes Antilock Brake System 5-201
DTC C0236 TCS RPM Signal Circuit Malfunction
Step Action Value(s) Yes
No
Was the Diagnostic System Check performed? Go to ABS
1
- Diagnostic
Go to Step2 System Check
1. Start the engine.
2
2. Vary the engine RPM with the throttle while observing
the 1/P tachometer.
-
Does the 1/P tachometer work properly as the engine RPM
changes? Go to Step 3
Go to Step 4
1. Turn the ignition switch to the OFF position.
2. Disconnect the PCM connector C2 from the PCM.
3. Disconnect the EBTCM connector C1 from
the EBTCM.
3
4. Install the
J
39700 Universal Breakout Box with the
J
39700 - 530 Cable Adapter to the EBTCM
0-5Q
harness only.
5. Use a
J
39200 DMM to measure the resistance
between the PCM harness connector C2 terminal 10
and the
J
39700 Universal Breakout Box terminal 11.
Is the resistance within the specified range? Go to Step 9 Go to Step 11
1. Tum the ignition switch to the OFF position.
2. Disconnect the PCM connector C2 from the PCM.
3. Disconnect the EBTCM connector C1 from
the EBTCM.
4. Install the J
39700 Universal Breakout Box with the
4
J
39700 - 530 Cable Adapter to the EBTCM
0-5Q
harness only.
5. Use a
J
39200 DMM to measure the resistance
between the PCM harness connector C2 terminal 1 O
and the
J 39700 Universal Breakout Box terminal 11.
Is the resistance within the specified range? Go to Step 5
Go to Step 12
Use a J 39200 DMM to measure the resistance between
5
the
J 39700 Universal Breakout Box terminal 11 and
OL (Infinite)
terminal 15.
Is the resistance within the specified range? Go to Step 6 Go to Step 13
1. Tum the ignition switch to the RUN position
6
2. Use a J 39200 DMM to measure the voltage between
0-2V
the
J 39700 Universal Breakout Box terminal 11 and
terminal 15.
Is the voltage within the specified range? Go to Step 7 Go to Step 14
1. Inspect the PCM connector for the following:
• Inspect for damage.
• Inspect for poor terminal contact.
• Inspect for corrosion.
2. Inspect the EBTCM connector for the following:
• Inspect for damage.
7
• Inspect for poor terminal contact. -
• Inspect for corrosion.
3. Ensure both the PCM connector and the EBTCM
connector are properly retained when connected.
)
Are the following signs present on either connector:
• Is poor terminal contact present?
• Is corrosion present?
• Is damaged terminals present? Go to Step 15 Go to Step B