7.TP SENSOR
Connect the C2 PCM harness connector.
Ignition on, engine not running.
With a scan tool, monitor the TP Sensor voltage.
Connect a jumper wire between the (K22) TP Sensor No.1 Signal circuit
and the (K922) Sensor Return circuit in the Throttle Body harness con-
nector.
TP Sensor No.1 voltage should start at approximately 4.8 volts and
decrease to 0.2 of a volt.
Connect a jumper wire between the (K122) TP Sensor No.2 Signal cir-
cuit and the (F855) 5-volt Supply circuit in the Throttle Body harness
connector.
TP Sensor No.2 voltage should start at approximately 0 volts and
increase to 4.8 to 5.2 volts.
Does the TP Sensor voltage change to the appropriate voltage
with the jumper wire installed?
Ye s>>
Disconnect the Battery before replacing the Throttle Body
Assembly. Replace the ThrottleBody Assembly. After instal-
lation is complete, use a scan tool and select the ETC
RELEARN function
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 8
8.RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the C2 PCM harness connector.
Measure the resistance of the (K22) and (K122) TP Signal circuits from
the Throttle Body harness connector to the appropriate terminals of spe-
cial tool #8815.
Is the resistance below 5.0 ohms for each circuit?
Ye s>>
Go To 9
No>>
Repair the excessive resistance in the (K22) or (K122) TP
Sensor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
7.TP SENSOR
Connect the C2 PCM harness connector.
Ignition on, engine not running.
With a scan tool, monitor the TP Sensor voltage.
Connect a jumper wire between the (K22) TP Sensor No.1 Signal circuit
and the (K922) Sensor Return circuit in the Throttle Body harness con-
nector.
TP Sensor No.1 voltage should start at approximately 4.8 volts and
decrease to 0.2 of a volt.
Connect a jumper wire between the (K122) TP Sensor No.2 Signal cir-
cuit and the (F855) 5-volt Supply circuit in the Throttle Body harness
connector.
TP Sensor No.2 voltage should start at approximately 0 volts and
increase to 4.8 to 5.2 volts.
Does the TP Sensor voltage change to the appropriate voltage
with the jumper wire installed?
Ye s>>
Disconnect the Battery before replacing the Throttle Body
Assembly. Replace the ThrottleBody Assembly. After instal-
lation is complete, use a scan tool and select the ETC
RELEARN function
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 8
8.RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the C2 PCM harness connector.
Measure the resistance of the (K22) and (K122) TP Signal circuits from
the Throttle Body harness connector to the appropriate terminals of spe-
cial tool #8815.
Is the resistance below 5.0 ohms for each circuit?
Ye s>>
Go To 9
No>>
Repair the excessive resistance in the (K22) or (K122) TP
Sensor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
7.TP SENSOR
Connect the PCM harness connectors.
Ignition on, engine not running.
With a scan tool, monitor the TP Sensor voltage.
Connect a jumper wire between the (K22) TP Sensor No.1 Signal circuit
and the (K922) TP Sensor Return circuit in the Throttle Body harness
connector.
TP Sensor No.1 voltage should start at approximately 4.8 volts and
decrease to 0.2 of a volt.
Connect a jumper wire between the (K122) TP Sensor No.2 Signal cir-
cuit and the (F855) 5-volt Supply circuit in the Throttle Body harness
connector.
TP Sensor No.2 voltage should start at approximately 0 volts and
increase to 4.8 to 5.2 volts.
Does the TP Sensor voltage change to the appropriate voltage
with the jumper wire installed?
Ye s>>
Disconnect the Battery before replacing the Throttle Body
Assembly. Replace the ThrottleBody Assembly. After instal-
lation is complete, use a scan tool and select the ETC
RELEARN function
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 8
8.RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the C2 PCM harness connector.
Measure the resistance of the (K22) and (K122) TP Signal circuits from
the Throttle Body harness connector to the appropriate terminals of spe-
cial tool #8815.
Is the resistance below 5.0 ohms for each circuit?
Ye s>>
Go To 9
No>>
Repair the excessive resistance in the (K22) or (K122) TP
Sensor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
7.TP SENSOR
Connect the PCM harness connector.
Ignition on, engine not running.
With a scan tool, monitor the TP Sensor voltage.
Connect a jumper wire between the (K22) TP Sensor No.1 Signal circuit
and the (K922) TP Sensor Return circuit in the Throttle Body harness
connector.
TP Sensor No.1 voltage should start at approximately 4.8 volts and
decrease to 0.2 of a volt.
Connect a jumper wire between the (K122) TP Sensor No.2 Signal cir-
cuit and the (F855) 5-volt Supply circuit in the Throttle Body harness
connector.
TP Sensor No.2 voltage should start at approximately 0 volts and
increase to 4.8 to 5.2 volts.
Does the TP Sensor voltage change to the appropriate voltage
with the jumper wire installed?
Ye s>>
Disconnect the Battery before replacing the Throttle Body
Assembly. Replace the ThrottleBody Assembly. After instal-
lation is complete, use a scan tool and select the ETC
RELEARN function
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 8
8.RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the C2 PCM harness connector.
Measure the resistance of the (K22) and (K122) TP Signal circuits from
the Throttle Body harness connector to the appropriate terminals of spe-
cial tool #8815.
Is the resistance below 5.0 ohms for each circuit?
Ye s>>
Go To 9
No>>
Repair the excessive resistance in the (K22) or (K122) TP
Sensor Signal circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
3.(K25) BATTERY TEMP SENSOR SIGNAL
With the scan tool, read the Battery Temp Sensor voltage with the Batt Temp Sensor still disconnected.
Is the voltage above 4.6 volts?
Ye s>>
Go To 4
No>>
Go To 7
4.BATTERY TEMPERATURE SENSOR
Connect a jumper wire between the (K25) Battery Temp Signal circuit and the(K900) Sensor ground circuit at the
Sensor harness connector.
With the scan tool, read the Battery Temp Sensor voltage.
Is the voltage below 1.0 volt?
Ye s>>
Replace the Battery Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 5
NOTE: Remove the jumper wire before continuing.
5.RESISTANCE IN THE (K25) BATTERY TEMP SENSOR SIGNAL CIRCUIT
Turn the ignition off.
Connect the Battery Temp Sensor harness connector.
NOTE: Make sure the voltmeter leads meet the terminals in the
connector and that there is good terminal to wire connection.
NOTE: Make sure the voltmeter leads are connected for positive
polarity
Backprobe the (K25) Battery Temp Sensor Signal circuit at the Sensor
harness connector and the PCM harness connector with both voltmeter
leads.
Start the engine.
Allow the engine to idle.
Is the voltage below 0.10 of a volt?
Ye s>>
Go To 6
No>>
Repair the excessive resistance in the (K25) Battery Temp
Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 -
ENGINE - STANDARD PROCEDURE)
3.IAT SENSOR VOLTAGE BELOW 1.0 VOLT
Turn the ignition off.
Connect a jumper wire across the IAT Sensor harness connector.
Ignition on, engine not running.
With the scan tool, read the IAT voltage.
Is the voltage below 1.0 volt?
Ye s>>
Replace the Intake Air Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 -
ENGINE - STANDARD PROCEDURE)
No>>
Go To 4
NOTE: Remove the jumper wire and connect the Sensor harness
connector before continuing.
4.RESISTANCE IN THE (K21) IAT SENSOR SIGNAL CIRCUIT
Turn the ignition off.
NOTE: Make sure the voltmeter leads meet the terminals in the
connector and that there is good terminal to wire connection.
NOTE: Make sure the voltmeter leads are connected for positive
polarity
Backprobe the (K21) IAT Sensor Signal circuit at the IAT Sensor har-
ness connector and PCM harness connector with the voltmeter leads.
Start the engine.
Allow the engine to idle.
Is the voltage below 0.10 of a volt?
Ye s>>
Go To 6
No>>
Repair the excessive resistance in the (K21) IAT Sensor
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 -
ENGINE - STANDARD PROCEDURE)